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FIGURE 6. Coralliocryptus caementa n. gen., n in A new genus and new species of leucosiid crab (Crustacea: Decapoda: Brachyura) from coral reefs in the Indo-West Pacific

FIGURE 6. Coralliocryptus caementa n. gen., n. sp., non-types, showing coloration in life. A, male (3.3 × 5.3 mm) (ZRC 2012.0145), Vanuatu; B, male (3.8 x 6.4 mm) (CBM-ZC 10876), Vanuatu.

FIGURE 5. Coralliocryptus caementa n. gen., n in A new genus and new species of leucosiid crab (Crustacea: Decapoda: Brachyura) from coral reefs in the Indo-West Pacific

FIGURE 5. Coralliocryptus caementa n. gen., n. sp., holotype, female (5.4 x 9.1 mm) (CBM-ZC 10875), Okinawa. A, right cheliped, ventral view; B, same, dorsal view (tubercles on merus omitted); C, same, chela, extensor (anterior) view; D, right first ambulatory leg (second pereopod), ventral view; E, same, dactylus, ventral view. Scale bars: 1 mm for A–D; 0.5 mm for E.

FIGURE 3. Coralliocryptus caementa n. gen., n in A new genus and new species of leucosiid crab (Crustacea: Decapoda: Brachyura) from coral reefs in the Indo-West Pacific

FIGURE 3. Coralliocryptus caementa n. gen., n. sp., holotype, female (5.4 x 9.1 mm) (CBM-ZC 10875), Okinawa. A, schematic drawing of carapace, dorsal view, showing outline and position of tubercles; B, anterior part of carapace, left side, dorsal view; C, lateral part of carapace, dorsal view; D, frontal part of carapace, right side, anterior (frontal) view, showing epistome, antennular fossa and antenna; E, right orbit, anterior (frontal) view; F, dorsal roof of orbit, posterodorsal view; G, left third maxilliped, outer view; H, anterior part of sterno-abdominal cavity, ventral view; I, abdomen and telson, ventral view (tubercles on somites 3–6 and telson, and setae omitted). Scale bars: 2 mm for A; 1 mm for B, C, I; 0.5 mm for D–G. Abbreviations: A1B, basal segment of antennule; S1, abdominal somite 1.

FIGURE 4. Coralliocryptus caementa n. gen., n in A new genus and new species of leucosiid crab (Crustacea: Decapoda: Brachyura) from coral reefs in the Indo-West Pacific

FIGURE 4. Coralliocryptus caementa n. gen., n. sp., non-type, male (3.8 x 6.4 mm) (CBM-ZC 10876), Vanuatu. A, left mandible, outer view; B, same, inner view; C, left first maxilliped, outer view; D, left second maxilliped, outer view; E, left third maxilliped, inner view; F, thoracic sternum and first gonopods, ventral view; G, second to sixth abdominal somites and telson, outer view; H, left first gonopod and coxa of fifth pereopod, ventral view; I, left first gonopod, lateral view; J, left second gonopod, dorsal view; K, same, lateral view (dissected). Scale bars: 1 mm for F, G; 0.5 mm for A–E, H–K. Abbreviation: P, penis.

FIGURE 2. Coralliocryptus caementa n. gen., n in A new genus and new species of leucosiid crab (Crustacea: Decapoda: Brachyura) from coral reefs in the Indo-West Pacific

FIGURE 2. Coralliocryptus caementa n. gen., n. sp., non-type, male (3.8 x 6.4 mm) (CBM-ZC 10876), Vanuatu, entire animal. A, dorsal view; B, anterior (frontal) view; C, ventral view.

FIGURE 1. Coralliocryptus caementa n. gen., n in A new genus and new species of leucosiid crab (Crustacea: Decapoda: Brachyura) from coral reefs in the Indo-West Pacific

FIGURE 1. Coralliocryptus caementa n. gen., n. sp., holotype, female (5.4 x 9.1 mm) (CBM-ZC 10875), Okinawa, entire animal. A, dorsal view; B, anterior (frontal) view; C, ventral view.

FIGURE 15. A–I, Cerithidea rhizophorarum. J in The genus Cerithidea Swainson, 1840 (Gastropoda: Potamididae) in the Indo-West Pacific region

FIGURE 15. A–I, Cerithidea rhizophorarum. J–AA, C. moerchii. A, C. rhizophorarum A. Adams, 1855, syntype, Cagayan de Oro, Mindanao, Philippines (NHMUK 1996432/4). B, no locality (NHMUK 1996432/7; not a syntype of C. rhizophorarum). C–H, Guijulngan, Negros Oriental, Philippines (USNM 232846; E–H views of same specimen). I, Batangas, Luzon, Philippines (USNM 243643). J, Tai Mei Tuk, Tolo Harbour, Hong Kong (NHMUK 20130263). K–N, Shiu Hau, Tong Fuk Min Wan, Lantau I., Hong Kong (NHMUK 20130264); L, M views of same specimen). O, P, Yoshida R., Oiehama, Kasaoka City, Hiroshima Pref., Japan (NHMUK 20130265). Q, Kushida R., Matsunase, Mie Pref., Japan (NHMUK 20130266). R, Yonekura, Kiire-nukumi-cho, Kagoshima City, Kagoshima Pref., Japan (NHMUK 20130267). S, Tsuyazaki, Fukuoka Pref., Japan (NHMUK 20130268). T, Hikawa R., Kumamoto Pref., Japan (NHMUK 20130269). U, Cerithium moerchii A. Adams in G.B. Sowerby II, 1855, syntype, no locality (NHMUK 20060321). V, Funaura Bay, Iriomote I., Ryukyu Is, Japan (NHMUK 20130270). W–Y, Ura, Tatsugou-cho, Amami Is, Kagoshima Pref., Japan (NHMUK 20130271; X, Y views of same specimen). Z, AA, Tamshui R., Bali, Taiwan (NHMUK 20070387).

FIGURE 13. A–M, Cerithidea decollata. N–Y, C. tonkiniana. A in The genus Cerithidea Swainson, 1840 (Gastropoda: Potamididae) in the Indo-West Pacific region

FIGURE 13. A–M, Cerithidea decollata. N–Y, C. tonkiniana. A, Port Alfred, South Africa (NHMUK 1927.2.9.362). B, Africa (NHMUK 20130256). C, D, I, SE Pemba Bay, Cabo Delgado Prov., Mozambique (NHMUK 20060485). J–M, Murex decollatus Linnaeus, 1767, neotype, SE Pemba Bay, Cabo Delgado Prov., Mozambique (NHMUK 20130229). E, Zwartkops R., South Africa (NHMUK 20130257). F, Umgeni R., Durban, South Africa (NHMUK 20041433). G, Toliara, Madagascar (NHMUK 20130258). H, no locality (NHMUK 20130259). N, O, Ta Mai Tuk, Tolo Harbour, Hong Kong (NHMUK 20130261). P, Sai Kung, Hong Kong (NHMUK 20070380). Q, C. tonkiniana Mabille, 1887, syntype, Tonkin, Vietnam (MNHN 25690). R, Hai Phong, Vietnam (NHMUK 20130260). S–W, Ukidono-Kobashi, Yorimo R., Touruta-Shinden, Usa, Oita Pref., Japan (NHMUK 20070383; T–W views of same specimen). X, Y, Hikawa R., Yatsushiro-gun, Kumamoto Pref., Japan (NHMUK 20130262).

FIGURE 12. B–J, Cerithidea quoyii. K–P, C. andamanensis. A, Q in The genus Cerithidea Swainson, 1840 (Gastropoda: Potamididae) in the Indo-West Pacific region

FIGURE 12. B–J, Cerithidea quoyii. K–P, C. andamanensis. A, Q–CC, C. dohrni. A, Specimen labelled as a syntype of Cerithium quoyii Hombron & Jacquinot, 1834, 'Borneo' (MNHN 25693), but this is not accepted (see text). This shell is probably a specimen of C. dohrni. B, Uglam Hujung, Kudat, Sabah, Malaysia (NHMUK 20130247). C, Ban Na Glua, Chantaburi, Thailand (NHMUK 20130248). D–G, C. quadrata G.B. Sowerby II, 1866, syntype, Melaka, Malaysia (NHMUK 20130228; views of same specimen). H–J, Ubin I., Singapore (NHMUK 20130249; I, J views of same specimen). K–N, C. andamanensis n. sp., holotype, King I., Mergui Arch., Burma (NHMUK 1887.3.10.24; views of same specimen). O, juvenile, Ao Nam Bor, Phuket I., Thailand (NHMUK 20130250). P, Andaman Is (NHMUK 20130251). Q, Manila, Philippines (NHMUK 20130252). R, Iwahig, Palawan, Philippines (USNM 862793). S–V, no locality (NHMUK 20130253; views of same specimen). W, X, Cavite, Luzon, Philippines (USNM 232955). Y, Z, Cerithium (Cerithidea) kieneri var. dohrni Kobelt, 1890, lectotype, Philippines (SMF 228131). AA, Lapu Lapu, Mactan, Philippines (NHMUK 20130254). BB, Abatan R., Bohol, Philippines (NHMUK 20130255). CC, Abatan R., Bohol, Philippines (MNHN M49/BC2153). Photography credits: A, MNHN; Y, Z, S. Hof, courtesy R. Janssen, SMF.

FIGURE 11 in The genus Cerithidea Swainson, 1840 (Gastropoda: Potamididae) in the Indo-West Pacific region

FIGURE 11. Distribution of Cerithidea anticipata (squares), C. reidi (stars), C. quoyii (circles), C. andamanensis n. sp. (crosses) and C. dohrni (triangles). Solid symbols, specimens examined; open symbols, literature records: A, Houbrick (1986); B, Quoy & Gaimard (1834); C, Morlet (1889).

FIGURE 10. A–P, Cerithidea anticipata. Q–V, C. reidi. A in The genus Cerithidea Swainson, 1840 (Gastropoda: Potamididae) in the Indo-West Pacific region

FIGURE 10. A–P, Cerithidea anticipata. Q–V, C. reidi. A, Cerithium kieneri Hombron & Jacquinot, 1848, holotype, Raffles Bay, Coburg Peninsula, Northern Territory, Australia (MNHN 25692). B, C, Buffalo Creek, Northern Territory, Australia (NHMUK 20130241). D, Casuarina Beach, Northern Territory, Australia (NHMUK 20130242). E–G, Kokenau, Mimika R., East Papua, Indonesia (AM C.458258). H, I, Rowes Bay, Townsville, Queensland, Australia (NHMUK 20130243). J, Moa I., Torres Strait, Queensland, Australia (NHMUK 20130244). K–M, Moreton Bay, Queensland, Australia (NHMUK 20130245; views of same specimen). N–P, Merauke, East Papua, Indonesia (AM C.121289; N, O views of same specimen). Q–V, Willies Creek, N of Broome, Western Australia (NHMUK 20130246; same lot as type series; T–V views of same specimen). Photography credit: A, MNHN.

FIGURE 7. A–L, Cerithidea sinensis. M–V, C. charbonnieri. A, B in The genus Cerithidea Swainson, 1840 (Gastropoda: Potamididae) in the Indo-West Pacific region

FIGURE 7. A–L, Cerithidea sinensis. M–V, C. charbonnieri. A, B, Cerithium sinense Philippi, 1848, syntypes, China (MNHN 25694). C, D, Shanghai, China (NHMUK 20130235). E–I, L, Hai Phong, Vietnam (USNM 207877; E–H views of same specimen). J, Da Nang, Vietnam (NHMUK 1901.12.12.175). K, Aphanistylus moreleti Wattebled, 1886, syntype, Huan An, Hue, Vietnam (MNHN 25687). M–R, Tapi River estuary, Surat Thani, Thailand (NHMUK 20100424; N, R and O–Q views of two specimens). S, Lubok Antu, Sarawak, Malaysia (NHMUK 20130236). T, U, Cerithium unicarinatum Metcalfe, 1852, syntype, Borneo (NHMUK 20130226). V, Cerithium charbonnieri Petit de la Saussaye, 1851, syntype, Borneo (MNHN 25689). Photography credits: A, B, K, V, MNHN.

FIGURE 6 in The genus Cerithidea Swainson, 1840 (Gastropoda: Potamididae) in the Indo-West Pacific region

FIGURE 6. Distribution of Cerithidea balteata (circles), C. sinensis (triangles) and C. charbonnieri (squares). Solid symbols, specimens examined; open symbols, literature records: A, Ma (2004); B, Wattebled (1886); C, Morlet (1889).

FIGURE 8. Cerithidea obtusa. A in The genus Cerithidea Swainson, 1840 (Gastropoda: Potamididae) in the Indo-West Pacific region

FIGURE 8. Cerithidea obtusa. A, Cerithium obtusum Lamarck, 1822, lectotype, Timor (probably in error) (MHNG INVE 51623). B–E, Melaka, Malaysia (NHMUK 20130237; views of same specimen). F, Phuket I., Thailand (NHMUK 20100441). G, H, Port Canning, West Bengal, India (NHMUK 20130240). I, Jelutong, Pulau Ubin, Singapore (NHMUK 20130239). J–M, Melaka, Malaysia (NHMUK 20130238; views of same specimen). Photography credit: A, MHNG.

FIGURE 3. A–M, Cerithidea weyersi. N–R, C. houbricki. A, C. weyersi Dautzenberg, 1899 in The genus Cerithidea Swainson, 1840 (Gastropoda: Potamididae) in the Indo-West Pacific region

FIGURE 3. A–M, Cerithidea weyersi. N–R, C. houbricki. A, C. weyersi Dautzenberg, 1899, syntype, Indrapura, Sumatra, Indonesia (IRSNB MT2772). B–D, Kantang, Trang Prov., Thailand (NHMUK 20130230). E–G, Sumatra, Indonesia (NHMUK 1899.11.20.4; views of same specimen). H–J, between Pangandaran and Cipatujah, Java, Indonesia (ZMB 106428; H juvenile). K, between Pangandaran and Cipatujah, Java, Indonesia (ZMB 106426). L, M, Char Kukrimukri, Bhola, Bangladesh (NHMUK 20130231). N–Q, C. houbricki n. sp., paratype (N) AM C.478233 and holotype (O–Q) AM C.126895, Koravake, Gulf Prov., Papua New Guinea. R, Samberbaba, Yapen I., Papua New Guinea (USNM 835667). Photography credit: A, IRSNB.

FIGURE 2 in The genus Cerithidea Swainson, 1840 (Gastropoda: Potamididae) in the Indo-West Pacific region

FIGURE 2. Living animals of Cerithidea species (not to scale). A. C. charbonnieri, Tapi R. estuary, Surat Thani, Thailand. B. C. obtusa, W Johore, Malaysia. C. C. anticipata, Brunswick R., NSW, Australia. D. C. quoyii, Singapore. E. C. moerchii, Kumamoto City, Kumamoto Pref., Kyushu, Japan. F. C. tonkiniana, Kumamoto City, Kumamoto Pref., Kyushu, Japan. G. C. reidi, Port Smith, Western Australia. H. C. weyersi, Tha Pom, Krabi, Thailand. Photography credits: C, D. Riek; D, S.K. Tan; E, F, H. Fukuda (from Fukuda, 2000). H, B. Craig.

FIGURE 1 in The genus Cerithidea Swainson, 1840 (Gastropoda: Potamididae) in the Indo-West Pacific region

FIGURE 1. Molecular phylogeny of Cerithidea species produced by Bayesian analysis of partial COI sequences, using Cerithideopsilla species as outgroup (after Reid et al. 2013). Localities details given by Reid et al. (2013). Support values are posterior probabilities; only values ≥0.95 (i.e. with strong support) are shown.

FIGURE 5. Cerithidea balteata. A, B, C. balteata A. Adams, 1855 in The genus Cerithidea Swainson, 1840 (Gastropoda: Potamididae) in the Indo-West Pacific region

FIGURE 5. Cerithidea balteata. A, B, C. balteata A. Adams, 1855, lectotype, Ticao, Philippines (NHMUK 20130222/1); also Cerithium ornatum G.B. Sowerby II, 1855, lectotype. C, G, Davao, Mindanao, Philippines (USNM 233133). D, C. cornea A. Adams, 1855, syntype, Guimaras, Philippines (NHMUK 20130224). E, F, Port Dupon, Leyte, Philippines (USNM 232971). H–J, Jordan R., Guimaras, Philippines (USNM 243887). K, Abatan R., Bohol, Philippines (MNHN M29/BC56). L, M, Obi, Moluccas, Indonesia (AM C.033594). N–P, Sula Is, Indonesia (NHMUK 20130232; O, P views of same specimen). Q–T, Mimika R., Kokenau, W Irian, Indonesia (AM C.458258). U, Aru Is, Moluccas, Indonesia (NHMUK 1858.3.17.29). V, W, Binatac Point, Samar, Philippines (USNM 544039). X–AA, Solomon Is (NHMUK 20130233). BB, Solomon Is (NHMUK 20130234). CC, DD, Luwuk, Sulawesi, Indonesia (ZMB 191377a).