CoO 



RCPOKT— 18Co. 



230. Leptochiton ne.rus, n. s. Like aselhts : scarcely sculptured : mantle-nia-gin witli 

 striated chaffv scales, like Magdalensis, interspersed with transparent needles. 

 20-80 fni. Cp. 



237. Acnnthochites avicula, n. s. Like arragonites, but valves sculptured in large 



snake-skin pattern. 8-20 fm. r. Cp, 



Family ratellid(P, 



238. KaceVa insfahilis, Gld. E E. Laige : shape of rompressa. 



239. Nacella inccssa, lids. Sulphur. Small : Ancyloid. 



240. ?Xucella sidiipiralis, n. s. Shaped like Emaryinula rosea, and mav be a SriiUl' 



Una. 10-20 fm. Cp. 



241. Nacella depicta, lids. Sulphur. Small, long, flat, smooth : colour in rays. 



242. Karelin paleacea, Gld. < )tia. Narrower, brown, striated at each end. 



2426. Nacella ?var. triangularis. Shorter: apex raised: scua-cely stiiated : wbitisl?j 

 with brown spots. 



Family AcmmdcB. (For synonyms, r. Reports in loci?.') 



243. Acmeea patina, Esch. Large, blackish or tessellated : with very fine distant 



striae. Between tides. Lord. 



244. Acm<ea pelia, Esch. Mo/e conical ; border narrow ; smooth, with blunt ribs 



often obsolete. Between tides, Lord. 

 244 6. Acmeea ?var. Asmi, Midd. Stout, small, black, conical. Probably an ab- 

 normal growth o( pelta, jun. (1 sp. beginning on pelfa) Cp. 



245. Acmeea persona, Esch. Smaller : apex posterior : colour blotched or freckled : 



sculpture in irregular ribs. Maz. Cat. no. 200. ^'a^. umhonatu, arclied, with 

 narrow distant ribs. Var. digitalis, ape.v near margin. Var. textilis, apex far 

 from marurin, approaching pelfn. 



246. Acmeea scabra, ^utt. Rve. Ou; le with close rows of fine arrinules ; orange- 



red tint, glossy. Var. limatula, sculpture stronger, boi_,. black: peihaps= 

 Maz. Cat. no. 2G5. 



247. Acmeea spectrum, Nutt. Rve. Flattened, with very strong ribs, incgiilar. 



248. Acmeea (?pileolus, Midd. var.) rosacea. Pink, small : like Ilerm specimens of 



Virginia. 



249. Lottia giganten, Gray. Genus reconstituted : mantle with papiUiB interrupted 



in front. ' Shell large, flat, dark, lustrous (= Teclurella gramlis, Smiths. Inst. 

 Check List). 



250. Scurria viitra, Esch. Papillre all round the mantle. White, conical : young 



sometimes faintly sculptured. In dead clam, 12 fm. Lord. 

 2506. Scurria fvar. f^jiiculuta, Y< ith ro'.ind"d riblets. somewhat aoduloua. 



136 



