— 11 — 
plurilobata, postic® interdum subobsoleta, mediarum bilobata; limbus se- 
tis corneis obsitus. 
Species examinale. 
Chiton rugosus (Gray) Sowb. Ind. Oce. 
„ Peruvianus Lam. Chili. 
» gigas Chemn. Cap. Bon. Spei. 
Sect. 9. Eudoxochiton Shuttl. 
(Acanthopleura Sect. *7 Gray.) 
Valve transvers:e, extern® ; lamina insertionis valvarum terminalium 
fimbriatim plurilobata, mediarum fimbriatim circa 6-lobata; limbus setis 
corneis brevibus obsitus. 
Speeies examinala. 
Chiton nobilis Gray. Nov. Zealand. 
Sect. 10. Craspedochiton Shuttl, 
Valve transvers®, extern®; lamina insertionis valve antice pauci- 
lobata, postiee medio fimbriata, mediarum profunde bilobata; limbus 
corneus minutissime asperulus. 
Species examinala. 
Chiton laqueatus Reeve. Ins. Philipp. 
Sect. 11. Acanthopleura Gray ex parte. 
(Acanthopleura Sect. ** Gray, et Corephium Gray.) 
Valve transvers®, externe; lamina insertionis valvarum terminalium 
plurilobata, postice interdum subobsoleta, mediarum bilobata; limbus 
aculeis corneo-calcareis inzqualibus interdum longissimis, vel parvis 
subarenaceis hinc inde vel dense obsitus. 
Species examinal@. 
Chiton obesus Shuttl. (C. piceus Reeve, C. magnific. Gray). Australia. 
„»  piceus Gmel. (C. occidentalis Reeve) Ind. occ. 
»  Piceolus Shuttl. Ins. Canar. 
„  aculeatus L. (Corephium echinatum Gray). Chili. 
„  &pinosus Briig. Ins. Philipp. 
„  scabrieulus Sowb. . Amer. centr. 
„  Californieus Nutt. California. 
„  pulcherrimus Sowb. Ins. Philipp- 
» Poli Phil. Mar. medit. 
»„ rüber (L.) Lowe. Mar.Britann. 
Obs. Die von Gray gegebene Beschreibung des Afterschildes von 
Corephium echinatum hat sich an meinen Exemplaren nicht 
bestätigt. 
