544 REPORT — 1863. 



98. CalKsta alternata has a very different aspect from tie ordinary C. drcinata ; but 



several of the Pacitic shells affiliate more naturally to the West ladianform. 



99. C. qffinis, C. tortuosa, and C. concinna appear to be one species. 



100. Sir E. Belcher is confident that he dredged C. petechiuUs, in deep water, off_ S. 

 Bias. Pie has the same confidence in regard to some of the East Indian 

 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 heen named V. sugillata by Eve., Conch. Ic. sp. 43. It was also 

 brought by Kellett and Wood, and is allied to V. 2yulicana. 



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

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

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



116. It appears that Oouldia {Thetis, C. B. Ad., olim, non Sby. nee H. &, A. Ad.) is^ 



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

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

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



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



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

 divided. 



lis, Lazaria Californica. 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 Cli. echinata of collections, and may possibly 

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

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



121J. This is the Chama Bmldiana of C. B. Ad., and probably distinct. 



1:34. The specimens of CariUum graniferum in Mus. Cum., 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 orhella of Gould, = (^j/iffire/fo tmnida, Conr., MS., is the northern 

 form ; uniformly larger and smoother than Biplodmita semiaspera. This 

 last is fully confirmed from both oceans. 



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

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



154. Zasea rubra. Mr. J. G. Jeffi'eys does not consider the Brit. Mus. specimen 

 identical with the British. The Mediterranean specimens are much more 

 unlike. A colony of fresh shells from a 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 Caii- 

 fornian and Japan coasts. Similar and perhaps conspecific forms are 

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

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



156. For this species, corhuloides, and other angular forms, the name Bornia may 



be revived in a restricted sense. (A, Ad.) 



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



that these intermediate forms would rank better with Montacuta or Tellimya 

 163. This is almost certainly =^?iO(Zo«te glnuca, Val. 

 168. I)f. Danker renamed this shell M. Adamnanus, P. Z. S. Nov. 1856, 



177. The subgenus A-hda may be enlarged to include this aud other nestling 



YLithopJa((/i, wliioh often adhere by byssus, like Mudiula. 



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



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



30 



