Tripoplax cowani Clark, 2008

Sellanes, Enrico Schwabe Javier, 2010, Revision of Chilean bathyal chitons (Mollusca: Polyplacophora) associated with cold-seeps, including description of a new species of Leptochiton (Leptochitonidae), Organisms Diversity & Evolution (New York, N. Y.) 10 (1), pp. 31-55 : 43-44

Tripoplax cowani Clark, 2008

( Figs. 12 , 13 , 14A–F )

Tripoplax cowani Clark, 2008 — Clark (2008: 81–84, figs. 11–14).

Figures

Fig. 12 Scanning electron micrographs of juvenile Tripoplax cowani, ZSM Mol 20080793. (A) Dorsal view of head valve. (B) Dorsal view of second valve. (C) Dorsal view of tail valve. (D) Left lateral view of tail valve. (E) Perino- tum. (F) Hyponotum. Scale bars: A–D=1 mm; E, F=100 µm

Fig. 13 Scanning electron micrographs of juvenile Tripoplax cowani, ZSM Mol 20080793. (A) Marginal fringe. (B) Spicules from mantle lappet. (C) Anterior portion of radula. (D) Detail of C, showing central, first and second lateral teeth. Scale bars: A, D=50 µm, B=10 µm, C=100 µm

Fig. 14 Ischnochitonid, chitonid and mopaliid deep- water Polyplacophora from Chile. (A–F) Tripoplax cowani, adult, ZSM Mol 20080792 (A, B), and juvenile, ZSM Mol 20080793 (C–F): (A) valves i–v; (B) valves vi–viii; (C, D) dorsal views of anterior and posterior portions, respectively, of complete specimen; (E) left lateral view of complete speci- men; (F) left lateral view of posterior portion, showing post- mucronal slope of tail valve. (G) Tonicia disjuncta, ZSM Mol 20061008; dorsal view of com- plete specimen. (H) Plaxiphora aurata, ZSM Moll 20040961; complete specimen in situ (Chile, Punta Huinay, 42º22.483´S 072º25.693´W, 0– 30.5 m), body length c. 24 mm. (I, J) Placiphorella sp., ZSM Mol 20041044; dorsal views: (I) complete specimen; (J) isolated tail valve. (K, L) Placophora (Euplacophora) atlantica, holo- type; dorsal views: (K) complete specimen; (L) isolated tail valve. Scale bars: A, B, I, K=10 mm; C–E=5 mm; F, L, J=2 mm; G=20 mm. (K, L) courtesy of Y. Villacampa