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533 results for “Cephalopoda”
FIGURE 4 in Octopus djinda (Cephalopoda: Octopodidae): a new member of the Octopus vulgaris group from southwest Australia
FIGURE 4. Digestive tract of a male Octopus djinda, sp. nov. specimen: Ad, dorsal aorta; BM, buccal mass; Cae, caecum; Cr, crop; DG, digestive gland; I, intestine; Oe, oesophagus; SGa, anterior salivary gland; SGp, posterior salivary gland; S, stomach; R, rectum. Scale, 20 mm.
FIGURE 3 in Octopus djinda (Cephalopoda: Octopodidae): a new member of the Octopus vulgaris group from southwest Australia
FIGURE 3. Male Octopus djinda, sp. nov. holotype specimen (WAM S.89010) from Esperance Bay, Australia. Scale, 30 mm.
FIGURE 6 in Octopus djinda (Cephalopoda: Octopodidae): a new member of the Octopus vulgaris group from southwest Australia
FIGURE 6. Octopus djinda, sp. nov. male reproductive tract shown in original orientation (A), and after rearrangement (B, C): AG, accessory gland; D, diverticulum; MG, mucilaginous gland; SG, spermatophore gland; SS, spermatophore sac; T, testis; TO, terminal organ. Female reproductive tract is also shown (D): Ov, ovary; Od, distal oviduct; OG, oviductal gland; Op, proximal oviduct. Scale, 10 mm.
Figure 3 in What can the mitochondrial genome reveal about higher-level phylogeny of the molluscan class Cephalopoda?
Figure 3. Phylogeny derived from maximum likelihood analysis of 13 concatenated mitochondrial protein-coding genes, coded as amino acids, of 13 taxa (see Table 1) and from partial sequences of other taxa (see Table 3). Partial sequences are indicated by higher taxon names to distinguish them from those species for which the entire mitochondrial genome sequence was available. Bootstrap values generated from 100 replicates. Eight morphological characters are also mapped. Additional detail of characters 1, 2, 4-6, 8 can be found in Vecchione et al. (2000). Characters 2 and 7 are from Young et al. (2008). Hatched areas for Idiosepiidae in characters 2-4 and Sepiadariidae in character 4 indicate information was unavailable for the character in this taxon. The shell is absent in Sepiadariidae, indicated by white space. Abbreviations: w/o, without.
Figure 1 in What can the mitochondrial genome reveal about higher-level phylogeny of the molluscan class Cephalopoda?
Figure 1. Analyses of mitochondrial gene order data. Bootstrap values of 100 resulting from constraints on the model indicated by 100*. Posterior probabilities of 1 resulting from constraints on the model indicated by 1*. A, phylogeny recovered by Bayesian analysis in BADGER. Oegopsids excluded. B, phylogeny recovered by Bayesian analysis in BADGER. Duplicated genes excluded. C, topology recovered by breakpoint analysis in GRAPPA and MPME analysis of gene adjacency matrix. Resolution is restricted to that enforced by constraint tree. D, phylogeny derived from inversion distance analysis in GRAPPA.
Cephalopoda
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FIGURE 10. Idiosepius hallami n in A new pygmy squid, Idiosepius hallami n. sp. (Cephalopoda: Idiosepiidae) from eastern Australia and elevation of the southern endemic 'notoides' clade to a new genus, Xipholeptos n. gen.
FIGURE 10. Idiosepius hallami n. sp. a, live animal, dorsal view, NSW, Lord Howe Island, photo A. Reid. Xipholeptos notoides n. gen. b, live animal, anterio-lateral view, Victoria, Port Phillip Bay, Point Cooke, photo J. Gaskell. c, live animal, dorsal view, Victoria, Port Phillip Bay, Ricketts Point, photo J. Gaskell. d, e, live animal, ventral view, female, AM C.532745, photos A. Reid.
FIGURE 9. Xipholeptos notoides n. gen. a in A new pygmy squid, Idiosepius hallami n. sp. (Cephalopoda: Idiosepiidae) from eastern Australia and elevation of the southern endemic 'notoides' clade to a new genus, Xipholeptos n. gen.
FIGURE 9. Xipholeptos notoides n. gen. a, SEM, portion of radula, female AM C.456950, 20.4 mm ML. b, enlargement of radula, same specimen. c, upper beak, top left; lower beak, bottom right, same specimen. d, distal end of spermatophore, AM C.456947, 10.0 mm ML. e, enlargement of oral end of spermatophore. f, light micrograph image of whole gladius, female, AM C.456947, 13.4 mm ML. Abbeviation: A, anterior. g, SEM image of anterior end of gladius, AM C.456947. Scale bars: a = 0.4 mm, b = 100 mm, c =50 mm. d, e, 0.06 mm, f, = 1.0 mm, g, = 400 µm.
FIGURE 4. Idiosepius hallami n in A new pygmy squid, Idiosepius hallami n. sp. (Cephalopoda: Idiosepiidae) from eastern Australia and elevation of the southern endemic 'notoides' clade to a new genus, Xipholeptos n. gen.
FIGURE 4. Idiosepius hallami n. sp. a, SEM, portion of radula, female paratype, AM C.269808, 9.9 mm ML. b, SEM, enlargement of portion of radula, same specimen. c, SEM upper beak, dorsal view, male paratype, AM C.456837, 9.4 mm ML. d, lower beak, ventral view, same specimen, scale bar 0.3 mm. Scale bars: a = 40 µm; b = 20 µm; c, d = 0.3 mm.
FIGURE 7. Idiosepius picteti a in A new pygmy squid, Idiosepius hallami n. sp. (Cephalopoda: Idiosepiidae) from eastern Australia and elevation of the southern endemic 'notoides' clade to a new genus, Xipholeptos n. gen.
FIGURE 7. Idiosepius picteti a, dorsal view male syntype?, MHNG M3/75 747/27, 17 mm ML. b, ventral view, same specimen. c, enlargement of arm crown, ventral view. Abbreviations: L, left; R, right. d, ventral arms of male, oral view, redrawn from Berry 1921, Fig. 66. Idiosepius n. sp. Okinawa I., e, dorsal view female, AM C.477896, 8.0 mm ML. f, ventral view, male, AM C.477896, 5.5 mm ML. Scale bars: a, b = 5 mm, c = 2 mm, e = 2 mm, f = 1 mm.
FIGURE 3. Idiosepius hallami n in A new pygmy squid, Idiosepius hallami n. sp. (Cephalopoda: Idiosepiidae) from eastern Australia and elevation of the southern endemic 'notoides' clade to a new genus, Xipholeptos n. gen.
FIGURE 3. Idiosepius hallami n. sp. a, funnel organ, female paratype, AM C.269830, 9.0 mm ML, A = anus, FO = funnel organ, FV = funnel valve. b, SEM, sucker rim, arm 2, right side, female paratype, AM C.483480, 10.8 mm ML. c, hectocotylised left ventral arm, dorsal view, male, AM C.269823, 5.2 mm ML. d, latero-ventral view of arm crown, male holotype AM C.269565, 8.5 mm ML, L = left ventral arm, R = right ventral arm (refers to left and right sides of animal). e, SEM club suckers, female paratype, AM C.483480, 10.8 mm ML. f, SEM, enlargement of individual club sucker ring, same specimen. g, enlargement of pegs, same specimen. Scale bars: a = 0.5 mm, b = 20 µm, c = 0.25 mm, d = 0.5 mm, e = 100 µm, f, g, = 10 µm.
FIGURE 2. Idiosepius hallami n in A new pygmy squid, Idiosepius hallami n. sp. (Cephalopoda: Idiosepiidae) from eastern Australia and elevation of the southern endemic 'notoides' clade to a new genus, Xipholeptos n. gen.
FIGURE 2. Idiosepius hallami n. sp. a, dorsal view, male holotype, AM C.269565, 8.5 mm ML. b, ventral view, same specimen. c, funnel-locking apparatus, paratype female, AM C.483479, 12.5 mm ML. d, mantle-locking apparatus, same specimen. Scale bars: a, b = 2 mm, c, d = 0.5 mm.
FIGURE 8. Xipholeptos notoides n. gen. a in A new pygmy squid, Idiosepius hallami n. sp. (Cephalopoda: Idiosepiidae) from eastern Australia and elevation of the southern endemic 'notoides' clade to a new genus, Xipholeptos n. gen.
FIGURE 8. Xipholeptos notoides n. gen. a, female, dorsal view. (Image, K. Hollis, obtained with permission from the Australian Biological Resources Study, Canberra.). b, lateral view of head showing skin tag (arrowed), male, AM C.476549, 14.8 mm ML. c, funnel (F) and mantle-locking apparatus (M), male, AM C.476093, 16.8 mm ML. d, male, distal tip of left ventral arm, AM C.456947, 11.3 mm ML. Scale bars: a = 5 mm, b, c = 1 mm, d = 0.1 mm.
FIGURE 5. Idiosepius hallami n in A new pygmy squid, Idiosepius hallami n. sp. (Cephalopoda: Idiosepiidae) from eastern Australia and elevation of the southern endemic 'notoides' clade to a new genus, Xipholeptos n. gen.
FIGURE 5. Idiosepius hallami n. sp. a, male reproductive tract, AM C.269808, 7.6 mm ML. Abbreviations: AAG, appendix of accessory gland; AG, accessory gland; DDC, distal deferent canal; Go, genital orifice; MG, mucilaginous gland; SG, spermatophoric gland; SS, spermatophore storage sac; T, testis, VD, vas deferens. b, distal end of spermatophore, AM C.477701, 6.0 mm ML. c, female head, ventral view, paratype AM C.269830, 10.0 mm ML, arrow indicates spermatophores attached to head. d, Female paratype reproductive tract (overlying connective tissue partially removed to reveal eggs), AM C.483479, 12.5 mm ML. Abbreviations: A, anus; G, gill; NG, nidamental gland; O, ovary. e, light micrograph image of whole gladius, female paratype, AM C.559076, 13.7 mm ML. Abbreviation: A, anterior. Scale bars: a = 0.5 mm, b = 0.1 mm, c = 1.0 mm, d = 1 mm, e = 1.0 mm.
FIGURE 6 in A new pygmy squid, Idiosepius hallami n. sp. (Cephalopoda: Idiosepiidae) from eastern Australia and elevation of the southern endemic 'notoides' clade to a new genus, Xipholeptos n. gen.
FIGURE 6. Distribution of Australian idiosepiids examined in this study: X. notoides n. gen. grey triangles (solid arrow indicates the type locality); X. sp. solid black squares; I. hallami n. sp. solid black circles (open arrow indicates the type locality); I. pygmaeus (grey circles); I. sp. Lizard Island (black star). Note: Black dot off the eastern Australian coast indicates occurrence of I. hallami n. sp. on Lord Howe Island.
FIGURA 2 in O Enigma Da "Reação Espermatofórica": Breve Síntese Do Conhecimento Sobre A Estrutura E O Funcionamento Dos Espermatóforos Dos Cefalópodes (Mollusca: Cephalopoda)
FIGURA 2: Esquema didático resumindo os principais passos envolvidos na reação espermatofórica (baseado principalmente no estudo de Drew, 1919a). Alguns passos foram omitidos e algumas estruturas simplificadas objetivando maior clareza. A-G. Seqüência da reação espermatofórica. Vide texto para detalhes.
FIGURA 1 in O Enigma Da "Reação Espermatofórica": Breve Síntese Do Conhecimento Sobre A Estrutura E O Funcionamento Dos Espermatóforos Dos Cefalópodes (Mollusca: Cephalopoda)
FIGURA 1: Espermatóforos de espécimes machos de Doryteuthis plei (Blainville, 1823) coletados no Litoral Norte do Estado de São Paulo. A. Vista total de um espermatóforo fixado, evidenciando as regiões oral e aboral, bem como a massa espermática. B. Detalhe de espermatóforos recém-extraídos do saco espermatofórico, antes da fixação. Os principais componentes do espermatóforo dos coleóides estão evidentes, ilustrando sua complexidade estrutural. Na região oral (espermatóforo à esquerda), localizam-se o corpo cimentante e o aparato ejaculatório contendo o "filamento espiral". As regiões mediana e aboral (espermatóforo à direita) são ocupadas pela massa espermática. A túnica externa, não indicada na figura, é a delgada membrana que delimita todo o espermatóforo. Internamente à tunica externa, localiza-se a túnica mediana, que é mais espessa e conspícua na região aboral.
Fig. 2 in New Data on the Systematics of Comb-fin Squids Chtenopteryx spp. (Cephalopoda: Chtenopterygidae) from the Canary Islands
Fig. 2. (A) Chtenopteryx canariensis, 43 mm ML female specimen captured in Canary Islands, ventral view. (B) Chtenopteryx sicula, 34 mm ML mature female captured in Canary Islands. (C) Ink sack of C. canariensis without visceral photophore. (D) Visceral photophore on ink sack of C. sicula.
Fig. 1 in New Data on the Systematics of Comb-fin Squids Chtenopteryx spp. (Cephalopoda: Chtenopterygidae) from the Canary Islands
Fig. 1. Map of the sampling areas. Black dots indicate fishing areas. Grey zones correspond to marine protected areas.
Fig. 5 in New Data on the Systematics of Comb-fin Squids Chtenopteryx spp. (Cephalopoda: Chtenopterygidae) from the Canary Islands
Fig. 5. Maximum-likelihood phylogenetic tree of the genus Chtenopteryx based on COI sequences. Bootstrap values are shown in the nodes. Accession numbers correspond to table 2. *: samples collected in the Canary Islands.
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