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Fig. 8 in Redescription of the Chilean angel shark Squatina armata (Philippi, 1887) (Squatiniformes, Squatinidae)

Fig. 8. Bayesian inference phylogenetic reconstruction of 11 species of Squatina Duméril, 1805 for which CO1, 16S and NADH2 sequences were available. Species groups are colour-coded in the phylogeny and the geographic distributions on the map. Sampling location of the S. armata (Philippi, 1887) vouchers MNHNCL ICT 7625 (neotype) and MNHNCL ICT 7626 is indicated with an orange circle.

Fig. 6 in Redescription of the Chilean angel shark Squatina armata (Philippi, 1887) (Squatiniformes, Squatinidae)

Fig. 6. Squatina armata (Philippi, 1887) (voucher MNHNCL ICT 7626), clasper morphology.a. External. b–c. Skeletal dorsal (b) and ventral (c) views. Abbreviations: acd = accessory dorsal marginal cartilage; ap = apopyle; ax =axial cartilage; cg = clasper groove; cgl = clasper glans; crh = cover rhipidion; dm = dorsal marginal; dt = dorsal terminal; dt2 = dorsal terminal 2; gcr = globular cartilaginous rod; hyp = hypopyle; rh = rhipidion; vm = ventral marginal cartilage; vt = ventral terminal; vt2 = ventral terminal 2.

Fig. 5 in Redescription of the Chilean angel shark Squatina armata (Philippi, 1887) (Squatiniformes, Squatinidae)

Fig. 5. Squatina armata (Philippi, 1887), adult ♂, obtained from the fishmarket of Higuerillas, central Chile, date of capture 18 Mar. 2020 (collection code CCM-1228, Chondrolab, Universidad de Valparaíso). Close up of individual teeth not to scale.

Fig. 4 in Redescription of the Chilean angel shark Squatina armata (Philippi, 1887) (Squatiniformes, Squatinidae)

Fig. 4. Squatina armata (Philippi, 1887), neotype, ♂ (MNHNCL ICT 7625), dermal denticle shapes and patterns. a. Rostral area, frontal view. b. Interorbital area. c–d. Medial-dorsal denticles in frontal (c) and lateral (d) views. e. Caudal area, la

Fig. 2 in Redescription of the Chilean angel shark Squatina armata (Philippi, 1887) (Squatiniformes, Squatinidae)

Fig. 2. Squatina armata (Philippi, 1887), neotype, ♂ (MNHNCL ICT 7625), illustration of the left anterior nasal flap. a. Anterior barbel. b. Median barbel. c. Posterior barbel. Illustrations by IFC.

Fig. 1 in Redescription of the Chilean angel shark Squatina armata (Philippi, 1887) (Squatiniformes, Squatinidae)

Fig. 1. Squatina armata (Philippi, 1887), neotype, ♂ (1004 mm total length; MNHNCL ICT 7625), fresh specimen. a. Dorsal view. b. Ventral view.

Fig. 3 in Redescription of the Chilean angel shark Squatina armata (Philippi, 1887) (Squatiniformes, Squatinidae)

Fig. 3. Squatina armata (Philippi, 1887), neotype, ♂ (MNHNCL ICT 7625), dorsal thorns. a. Patches of thorns on head forming three pairs; one pair on internarinal space (left one marked a1), second patch on pre-orbital area (a2), third patch on postorbital area (a3), two pairs of interspiracle thorns (a4). b. Single patch of 91–93 thorns on apex of each pectoral fin; thorns hooked, inwardly curved. c. Close-up of a pectoral fin thorn. d. 36 dorsal hooked thorns forming a single row: one medial-dorsal thorn anterior to pelvic girdle followed by 30 caudal thorns and 5 interdorsal thorns (not shown).

Fig. 7 in Redescription of the Chilean angel shark Squatina armata (Philippi, 1887) (Squatiniformes, Squatinidae)

Fig. 7 (see previous page). Neighbour-Joining tree of the angel shark CO1, 16S and NADH2 sequences included in this study. Non-American species reduced to one sequence per species for illustrative purposes. Approximate geographic distributions of the species are colour-coded. Sampling location and position in the NJ tree of the Squatina armata (Philippi, 1887) vouchers MNHNCL ICT 7625 (neotype) and MNHNCL ICT 7626 are indicated with orange circles.

FIGURE 6 in A review of the systematics of western North Pacific angel sharks, genus Squatina, with redescriptions of Squatina formosa, S. japonica, and S. nebulosa (Chondrichthyes: Squatiniformes, Squatinidae)

FIGURE 6: Squatina tergocellatoides, fresh specimen, in Tahsi fish market, photograph by D.A. Ebert.

FIGURE 5 in A review of the systematics of western North Pacific angel sharks, genus Squatina, with redescriptions of Squatina formosa, S. japonica, and S. nebulosa (Chondrichthyes: Squatiniformes, Squatinidae)

FIGURE 5: A. Squatina nebulosa holotype (BMNH 1862.11.1.89), immature male, 580 mm, B. Close-up of caudal fin, C. Close-up of snout.

FIGURE 3 in A review of the systematics of western North Pacific angel sharks, genus Squatina, with redescriptions of Squatina formosa, S. japonica, and S. nebulosa (Chondrichthyes: Squatiniformes, Squatinidae)

FIGURE 3: Comparisons of true S. formosa holotype (NTUM 01329) with mislabeled S. fomosa paratype (NTUM 01328). A. Caudal fins, B. Dorsal fins, C. Upper lip arches.

FIGURE 2 in A review of the systematics of western North Pacific angel sharks, genus Squatina, with redescriptions of Squatina formosa, S. japonica, and S. nebulosa (Chondrichthyes: Squatiniformes, Squatinidae)

FIGURE 2: A. S. formosa holotype (NTUM 01329), immature female, 328 mm, B. Close-up of caudal fin, C. Close-up of snout.

FIGURE 4 in Squatina caillieti sp. nov., a new species of angel shark (Chondrichthyes: Squatiniformes: Squatinidae) from the Philippine Islands

FIGURE 4. Comparison of interspiracle distances (ISP) and interorbital distances (INO) of (A) S. caillieti sp. nov. holotype, (B) S. formosa, and (C) S. nebulosa.

FIGURE 5 in Squatina caillieti sp. nov., a new species of angel shark (Chondrichthyes: Squatiniformes: Squatinidae) from the Philippine Islands

FIGURE 5. Comparison of interdorsal distances (IDS) and dorsal-caudal distances (DCS) of (A) S. caillieti sp. nov. holotype, (B) S. formosa, and (C) S. nebulosa.

FIGURE 1 in Squatina caillieti sp. nov., a new species of angel shark (Chondrichthyes: Squatiniformes: Squatinidae) from the Philippine Islands

FIGURE 1. Squatina caillieti sp. nov. holotype, immature female, 326 mm, photo taken of fresh specimen (A) dorsal view, (B) ventral view, and (C) dorsal view of specimen after preservation.

FIGURE 3 in Squatina caillieti sp. nov., a new species of angel shark (Chondrichthyes: Squatiniformes: Squatinidae) from the Philippine Islands

FIGURE 3. Distribution of western North Pacific Squatina species. Red star indicates where S. caillieti sp. nov. holotype was caught in relation to other known ranges of western North Pacific species.

FIGURE 54 in Morphological and taxonomic revision of species of Squatina from the Southwestern Atlantic Ocean (Chondrichthyes: Squatiniformes: Squatinidae)

FIGURE 54. Comparative morphology of nasal barbels in Squatina species. A) S. occulta (MZUSP 73192, adult, head only). B) Squatina sp. (MNRJ 30190, juvenile female, 690 mm TL). C) S. squatina (MNRJ 30997, juvenile female, 284 mm TL). D) S. aculeata (MNHN 1979.133, adult, head only). Scale bar = 10 mm.

FIGURE 52 in Morphological and taxonomic revision of species of Squatina from the Southwestern Atlantic Ocean (Chondrichthyes: Squatiniformes: Squatinidae)

FIGURE 52. Central nervous system of S. guggenheim. A) Ventral view of brain and cranial nerves in specimen MZUSP 111961 (adult, head only). B) Dorsal view in specimen MOFURG 592 (juvenile female, 623 mm TL). Anterior to top. Abreviations: crb, cerebellum; opl, optic lobes; pba, pseudobranchial arteries; pcv, posterior cerebral veins; I, olfactive nerve; II, optic nerve; III, oculomotor nerve; IV, trochlear nerve; V, trigeminal nerve; VI, abducens nerve; VII, fascialis nerve; VIII, auditory nerve; IX, glossopharyngeal nerve; X, vagus nerve.

FIGURE 53 in Morphological and taxonomic revision of species of Squatina from the Southwestern Atlantic Ocean (Chondrichthyes: Squatiniformes: Squatinidae)

FIGURE 53. Comparative morphology of lateral dermal folds of head in Squatina species. A) S. squatina (MNRJ 30997, juvenile female, 284 mm TL). B) S. aculeata (MNHN 1979.133, adult, head only). C) S. argentina (MOFURG 457, juvenile male, 359 mm TL). D) S. occulta (MNRJ 30191, juvenile male, 808 mm TL).

FIGURE 51 in Morphological and taxonomic revision of species of Squatina from the Southwestern Atlantic Ocean (Chondrichthyes: Squatiniformes: Squatinidae)

FIGURE 51. Morphology of cephalic muscular system in Squatina species. A) Ventral view of mandibular and hyoidean muscles (based on NUPEC 1227, juvenile male, 569 mm TL). B) Dorsal view of cranial and hyoidean muscles (based on NUPEC 1227). C) Ventral view of hyoidean and hypobranchial muscles, after removing the muscles represented in (A) (based on MZUSP 110870, juvenile female, 449 mm TL). Anterior to top. Abbreviations: adm, adductor mandibulae; ams, adductor mandibulae superficialis; chd, constrictor hyoideus dorsalis; chv, constrictor hyoideus ventralis; co, coracoid bar; coa, coracoarcualis; cob1, coraco-branchialis 1; coh, coraco-hyoideus; ihy, inter-hyoideus; imd, intermandibularis; lpq, levator palatoquadrati; spl, spiracularis.