GASTEROPODA. 327 
row oval, dull olive colour; head small, and laterally compressed ; 
branchie pale ochreous-red, extending from the anterior margin of the 
foot to the rectum, leaflets conical, compressed, tapering to a fine 
point. 
SHELL minute, elongated-oval, slightly narrowed anteriorly, sub- 
carinate, valves obtusely beaked, without distinct lateral areas, but 
marked throughout with coarse, sub-laminate ridges of increment, and 
covered with minute punctures arranged in quincunx; posterior valve 
with an obtuse umbo. Colour externally deep chestnut, internally 
dull red. Margin narrow, thin, coriaceous, finely pubescent, having 
at the inner margin twenty-six fascicles of short, rigid, shining white 
sete, looking like minute polished tubercles. 
Length three-tenths of an inch ; breadth one-tenth of an inch. 
Found on old shells and in tide-pools, Orange Harbour. _ [1. p. c.] 
A small, but very distinct species. Most of the specimens were 
considerably eroded, showing that they had come to maturity. 
Figures 411, 4114, shell and animal, above and below, enlarged ; 
4118, branchie, enlarged ; 411 c, branchia, still more magnified. 
Curron conrossus (Gould). 
Testa parva, ovata, fastigiata, pallida, roseo et incarnato concinne varie- 
gata; valvis rostratis; areis lateralibus elevatis, serie postica squa- 
marum et serve obliquad squamarum majorum ad apicem spectantium 
finitis ; intervallo levigato, et granulis paucis annulatis sparso; areis 
centralibus plerumque levibus sed punctis sparsis triangularibus re- 
trospectantibus confossis ; valva posteriori valde gibbosa, umbone Sere 
terminals, dentibus insertionis novem et ad valuam anteriorem viginti- 
quinque, pectinatis : margine fusco, carnoso. 
Chiton confossus, Goutp ; Proceed. Boston Soc. Nat. Hist., ii. 143. 
July 1846. Expedition Shells, 5. 
SHELL small and delicate, ovate, with a well-marked, dorsal ridge, 
