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FIGURE 6 in Bathydorus laniger and Docosaccus maculatus (Lyssacinosida; Hexactinellida): Two new species of glass sponge from the abyssal eastern North Pacific Ocean

FIGURE 6. Diagram of spicule arrangement for Docosaccus maculatus sp. n. from Station M, California, USA. The atrial surface is at the top of the image while the dermal surface is at the bottom. Scale bar: 200 µm.

FIGURE 3 in Bathydorus laniger and Docosaccus maculatus (Lyssacinosida; Hexactinellida): Two new species of glass sponge from the abyssal eastern North Pacific Ocean

FIGURE 3. Bathydorus laniger sp. n. from Station M, California, USA; scale diagram of spicule arrangement. The atrial surface is at the top of the image while the dermal surface is at the bottom; prostal diactins are omitted. Scale bar: 200 µm.

FIGURE 4 in Bathydorus laniger and Docosaccus maculatus (Lyssacinosida; Hexactinellida): Two new species of glass sponge from the abyssal eastern North Pacific Ocean

FIGURE 4. Bathydorus laniger sp. n., spicule images from SEM. A. Dermal stauractin. B. Hypoatrial hexactin. C. Hypodermal pentactin. D. Tip of choanosomal diactin. E. Oxyhexaster, oxyhemihexasters, and oxyhexactin. Scale bar: 200 µm.

FIGURE 2 in Bathydorus laniger and Docosaccus maculatus (Lyssacinosida; Hexactinellida): Two new species of glass sponge from the abyssal eastern North Pacific Ocean

FIGURE 2. Bathydorus laniger sp. n. holotype, whole body images. A. In situ photograph of whole organism taken by ROV Tiburon. Atrial surface with marginal prostalia visible. Credit: MBARI. B. Dermal surface fouled to a beige color from sediment during collection, with pleural prostalia (P) seen protruding as long, single diactins. Scale bar: 10 cm.

FIGURE 1 in Bathydorus laniger and Docosaccus maculatus (Lyssacinosida; Hexactinellida): Two new species of glass sponge from the abyssal eastern North Pacific Ocean

FIGURE 1. Collection location of two new species of glass sponges with a unique plate-like morphology: Station M (4,100 m depth, 34º50'N, 123º0'W), a long-term abyssal study site in the northeast Pacific.

FIGURE 9 in Transisthmian differentiation in the tree-climbing mangrove crab Aratus H. Milne Edwards, 1853 (Crustacea, Brachyura, Sesarmidae), with description of a new species from the tropical eastern Pacific

FIGURE 9. First male left gonopods of Aratus pisonii (Brazil) and Aratus pacificus n. sp. as observed in scanning electron microscopy (SEM) in apical view (A–F), detail of the endpiece in lateral view (G–L) and total view (M–R).

FIGURE 8 in Transisthmian differentiation in the tree-climbing mangrove crab Aratus H. Milne Edwards, 1853 (Crustacea, Brachyura, Sesarmidae), with description of a new species from the tropical eastern Pacific

FIGURE 8. First male left gonopods of Aratus pisonii (Brazil) and Aratus pacificus n. sp. as observed in scanning electron microscopy (SEM) in longitudinal mesial (A–F), dorsal (G–L), lateral (M–R) and ventral (S–X) views. CW × CL in mm.

FIGURE 6 in Transisthmian differentiation in the tree-climbing mangrove crab Aratus H. Milne Edwards, 1853 (Crustacea, Brachyura, Sesarmidae), with description of a new species from the tropical eastern Pacific

FIGURE 6. First male left gonopods of Aratus pisonii from the Caribbean Sea as observed in scanning electron microscopy (SEM) in longitudinal mesial (A–F), dorsal (G–L), lateral (M–R) and ventral (S–X) views. CW × CL in mm.

FIGURE 5 in Transisthmian differentiation in the tree-climbing mangrove crab Aratus H. Milne Edwards, 1853 (Crustacea, Brachyura, Sesarmidae), with description of a new species from the tropical eastern Pacific

FIGURE 5. Schematic drawing of a left first male gonopod in dorsal view showing the alignment differences of the suture compared to the chitinous tip in Aratus pisonii (full line) and Aratus pacificus n. sp. (dashed line). Abbreviation: p, pore.

FIGURE 4 in Transisthmian differentiation in the tree-climbing mangrove crab Aratus H. Milne Edwards, 1853 (Crustacea, Brachyura, Sesarmidae), with description of a new species from the tropical eastern Pacific

FIGURE 4. First male left gonopods of Aratus pisonii and Aratus pacificus n. sp. observed in scanning electron microscopy (SEM) in apical view (A–D), detail of the endpiece in lateral view (E–H) and total view (I–L). Abbreviation: d, depression.

FIGURE 3 in Transisthmian differentiation in the tree-climbing mangrove crab Aratus H. Milne Edwards, 1853 (Crustacea, Brachyura, Sesarmidae), with description of a new species from the tropical eastern Pacific

FIGURE 3. First male left gonopods of Aratus pisonii and Aratus pacificus n. sp. observed in scanning electron microscopy (SEM) in longitudinal mesial (A–D), dorsal (E–H), lateral (I–L) and ventral (M–P) views. CW × CL in mm. Abbreviations: s, suture; t, chitinous tip.

FIGURE 2 in Transisthmian differentiation in the tree-climbing mangrove crab Aratus H. Milne Edwards, 1853 (Crustacea, Brachyura, Sesarmidae), with description of a new species from the tropical eastern Pacific

FIGURE 2. Maximum parsimony spanning networks of 16S constructed with TCS of Aratus pisonii (white circles) and Aratus pacificus n. sp. (grey circles) of 16S ribosomal mitochondrial gene (A, 624bp) and 28S ribosomal nuclear gene (B, 940bp). Each line represents a substitution and dots represent missing haplotypes. CRP: Mata de Limón, Costa Rica; DR1: Las Salinas, Dominican Republic; ECU: Puerto Morro, Ecuador (type-locality of Aratus pacificus n. sp.); JAM: Priory, Jamaica; PAR: Maruda, Pará, Brazil.

FIGURE 1 in Transisthmian differentiation in the tree-climbing mangrove crab Aratus H. Milne Edwards, 1853 (Crustacea, Brachyura, Sesarmidae), with description of a new species from the tropical eastern Pacific

FIGURE 1. Sampling locations. BAH: Itacaré, Bahia, Brazil; CRA: Punta Uva, Costa Rica; CRP: Mata de Limón, Costa Rica; DR1: Las Salinas, Dominican Republic; DR2: Laguna Luperón, Dominican Republic; ECU: Puerto Morro, Ecuador (typelocality); JAM: Priory, Jamaica; PAR: Maruda, Pará, Brazil.

FIGURE 7 in Transisthmian differentiation in the tree-climbing mangrove crab Aratus H. Milne Edwards, 1853 (Crustacea, Brachyura, Sesarmidae), with description of a new species from the tropical eastern Pacific

FIGURE 7. First male left gonopods of Aratus pisonii from the Caribbean Sea as observed in scanning electron microscopy (SEM) in apical view (A–F), detail of the endpiece in lateral view (G–L) and total view (M–R).

FIGURE 2 in A new cheilostome bryozoan genus, Abditoporella (Hippoporidridae), from the eastern Pacific

FIGURE 2. Distribution of Abditoporella dimorpha n. sp. and Abditoporella turrita n. comb. on the western Mexican coast.

FIGURE 1. Abditoporella dimorpha n in A new cheilostome bryozoan genus, Abditoporella (Hippoporidridae), from the eastern Pacific

FIGURE 1. Abditoporella dimorpha n. sp. A, group of zooids from a young colony. B, close up of autozooids (Az), several female zooids (Fz) and kenozooid (Kz). C, unbleached colony with autozooidal opercula present. D, autozooids with a group of avicularia (Av); note the buttressed and recessed communication-pore areas at right. E, close up of campanulate primary orifice with tubercular margin of orificial rim. F, portion of growing edge of young colony.

FIGURE 3 in A new species of the genus Typton Costa (Crustacea: Decapoda: Palaemonidae: Pontoniinae) from the eastern tropical Pacific

FIGURE 3. Holotype female (LEMA CR-463). A, First right pereiopod, outer view; B, palm and fingers of first right pereiopod, inner view; C, second major pereiopod, outer view; D, distal portion of second major pereiopod, inner view; E, second minor pereiopod, outer view; F, dactyl and fixed finger of second minor pereiopod, outer view; G, palm and fingers of second minor pereiopod, inner view.

FIGURE 5 in A new species of the genus Typton Costa (Crustacea: Decapoda: Palaemonidae: Pontoniinae) from the eastern tropical Pacific

FIGURE 5. Holotype female (LEMA CR-463), A–E; paratype female (EMU-8828), F–G; paratype female (EMU-8842), H–I. A, first left pleopod, inner view; B, second left pleopod, outer view; C, appendix interna enlarged, inner view; D, F, H, left uropodal exopod, distolateral margin, dorsal view; E,G, I, right uropodal exopod, distolateral margin, dorsal view.

FIGURE 4 in A new species of the genus Typton Costa (Crustacea: Decapoda: Palaemonidae: Pontoniinae) from the eastern tropical Pacific

FIGURE 4. Holotype female (LEMA CR-463), A, D–F; paratype female (LEMA CR-464), B; paratype female (EMU-8842), C. A, third pereiopod, lateral view; B, C, propodus and dactyl of third pereiopod, lateral view; D, fourth pereiopod, lateral view; E, fifth pereiopod, lateral view; F, distal portion of propodus and dactyl of same pereiopod, mesial view.

FIGURE 2 in A new species of the genus Typton Costa (Crustacea: Decapoda: Palaemonidae: Pontoniinae) from the eastern tropical Pacific

FIGURE 2. Paratype female (EMU-8828). A, left antennule, ventral view; B, left antenna, ventral view; C, right mandible; D, left mandible; E, maxillule; F, maxilla; G, first maxilliped; H, I, second maxilliped; J, third maxilliped.