5-14 REPORT 1863. 



98. CalKsta altemata has a very different aspect from the ordinary C. circinata ; but 

 several of the Pacific shells afHliate more naturally to the West ludianform. 



regard 



Circes. At this distance of time, a written locality-ticket would have had 

 more authority. 



105. The hinge proves that this species is distinct from the true V. crenifera, Sby. 

 It has been named V. siigillata by live., Conch. Ic. sp. 43. It 'was also 

 brought by Kellett and Wood, and is allied to V. pulicaria. 



110. Among the Panama varieties of this very variable species is Venus fuscolineata. 

 T. grata takes the place of the Californian T. staminea, which is sometimes 

 erroneously given as a synonym, and is not straminea, as often quoted. 



116. It appears that Gouldia (Thetis, C. B. Ad., olim, non Sby. nee II. & A. Ad.) is 



congeneric with " Circe" minima, not with the Astartids. Prof. Adams's 

 fresh specimens of his 6. Pacifica prove to have the Crassatelloid internal 

 ligament, and represent one of the many remarkable forms of that group. 



117. Fresh specimens of G. variam, from Cape St. Lucas, have also the internal 



ligament, and must rank under Crassatella until that genus has been naturally 

 divided. 



118. Lazaria Calif ornica. A well-marked group of species from the West Coast. 

 121. The purple and orange specimens, here treated as the adolescent state of Chama 



Mexicana, are certainly the Ch. echinata of collections, and may possibly 

 prove a distinct species. A large series sent from Socoro Is. by Mr. Xantus 

 confirms this view ; but all the specimens seen are decorticated or incrusted. 



1216. This is the Chama Buddiana of C. B. Ad., and probably distinct. 



134. The specimens of Cardium graniferum in Mus. Cam., from St. Thomas, W. I., 

 appear exactly identical. 



136. The specimens from the Pacific coast, some of which are of very large size, 



have generally a red tinge round the inner margin ; as have also the Fiji 

 specimens brought by the U. S. Expl. Exp. In other respects they exactly 

 accord with the W. Indian. The Pacific shells are generally called C. 

 exasperata, Rve., a name first given to the rough Caribbean variety from 

 Honduras, &c. 



137. Codakia punctata. This shell also, brought by the U. S. Expl. Exp. from the 



Fiji Is., is found sparingly along the American shores, and has the same 

 coloured margin. 



142. May possibly prove identical with L. bella, Conr., S. Diego. 



150. The Lucina orbella of Gould, = Sphcerella tumida, Conr., MS., is the northern 

 form; uniformly larger and smoother than Diplodonta semiaspera. This 

 last is fully confirmed from both oceans. 



152. " Felania" serricata appears congeneric with Miltlia, H. & A. Ad., = Mittrea f 

 Gray, the type of which (M. Childreni) is a Gulf species. 



154. Lasea rubra* Mr. J. G. Jeffreys does not consider the Brit. Mus. specimen 

 identical with the British. The Mediterranean specimens are much more 

 unlike. A colony of fresh shells from & burrow at Cape St. Lucas, when 

 examined, under the microscope, side by side with Ilfracombe specimens, did 

 not present even varietal differences. The species also appears on the Cali- 

 fornian and Japan coasts. Similar and perhaps conspecitic forms are 

 found on most coasts : among them is Poronia Petitiana, Chen. Conch. 111. 

 p. 2, pi. 1. f. 2 ; Callao, not rare, Petit. 



150, For this species, corbuloides, and other angular forms, the name Bornia may 

 be revived in a restricted sanse. (A. Ad.) 



157, 158. Mr. A. Adams, who is about to make the Kelliads a special study, thinks 

 that these intermediate forms would rank better with Montacuta or TeUin.ya 



166. This is almost certainly =Anodonta ylauca, Val. 



168. Dr. D unker renamed this shell M. Adamsianus, P. Z. S. Nov. 1856. 



177. The subgerius Aiula may be enlarged to include this and other nestling 



?Lithopha(/i, which often adhere by byssus, like Modiola. 



178. Liosolenus is quite distinct from Mijtilimeria, which appears simply an aber- 



rant form of Lyonsia. Other " Lithophayi" probably rank with it. 



30 



