163 



nulato ; fissura profunda retrorsum in canalem externum reducta. 

 Long. 5, lat. 4, alt. 4 millim. Hab. Kagosima Bay, 10 fathoms, 

 gravelly. W. S. 



More simply and finely striate than any other species. 



E. (Clypidina) radiata. T. einerea, elliptica, costis radian- 

 tibus imbricatulis ad 17 et costulis intermedianis ad 3 ornata, 

 prope apicem acutum deflectum submedianum clathrata j intus 

 viridi radiata, margine denticulato ; fissura curta in canalem in- 

 ternum versus apicem producta. Long. 12, lat. 8, alt. 7 millim. 

 Inhabits Sydney Harbor. TV. S. 



E. (Clypidina) textilis. T. parvula, tenuis, fusco et cinereo 

 variegata, ovato-rotundata, costulis concinne imbricatis (tertio vel 

 quarto plerumque majore) radiata ; apice subcentrali acuto ; intus 

 viridi vel zonata vel radiata, margine crenulato ; fissura satis pro- 

 funda postice in canalem internum ad apicem producta. Long. 9, 

 lat. 7, alt. 4 millim. Hab. Ousima, on surf- washed rocks. TV. S. 



Reviula e chin at a. T. parva, ovalis, costata, costis inequali- 

 bus echinatis, interstitiis simplicibus (?), apice acuto revoluto ; 

 foramine oblongo antice rotundato, postice in canalem clathratam 

 reducto ; margine indentato. Long. 9, lat. 7, alt. 4 millim. Hab. : 

 Gaspe Straits. 



An imperfect description from the figure of a shell unfortu- 

 nately lost or missing. It seems different from the three recent 

 species already described, but possibly may be i?. propinqua 

 A. Ad. 



Chiton (Lophyrus) lugubris. T. parva, solida, punctata, 

 elongato-ovata, vix carinata, smaragdina ; area centrali liris lon- 

 gitud. pectinata ad apicem Isevi ; areis lateral, elevatis, liris 

 ramosis nodulosis instructis ; valvis terminalibus magnis prope 

 marginem radiatis, umbone subcentrali ; ligamentum latum, squa- 

 mis magnis transversis convexis obtectum. Long. 25, lat. 15 

 millim. Hab. 



C. (Leptochiton) comptus. T. parvula, tenuis, elliptica, aut 

 viridis aut incarnata SEepe albido vel flavo varie fasciata punc- 

 tata vel maculata ; valvis brevibus, terminalibus radiatim costatis 

 etiam punctatis, area centrali quincuncialiter punctata ; areis late- 



