544 REPORT — 1863. 



98. Calli'sfa alternata has a veiy different, aspect from tlie ordinary C. circinata ; but 



several of the Pacitic shells affiliate more naturally to the West Judian form. 



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



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

 Bias. He 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. crenifei-a, Sby. 

 It has been named V. sur/illata by Rve., Conch. Ic. sp. 43. It was also 

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



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

 T. grata takes the place of the Califoraian 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., olhn, non Sby. nee H. & A. Ad.) is 



congeneric with " Circe'^ mmima, not with the Astartids. Pi'of. Adams's 

 fi'esh 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 i-ank under Crassatella until that genus has been naturally 

 divided. 



118. Lazaria (Jalifornica. A well-marked gi'oup of species from the West Coast. 

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



3Iexicana, 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 Baddiana of C. B. Ad., and probably distinct. 



loJr. The specimens of Cardium (/raniferum 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. Tiie Pacitic shells are generally called C. 

 exaspcrata, 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. hcUa, Conr., S. Diego. 



100. The Lucina orbella of Gio\\\(\.,-= SphcereUa tuinida, Conr., MS., is the noi-thern 

 form ; luiiformly larger and smoother than Diplodonta semiaspera. This 

 last is fully confirmed from botli ocetms. 



152. " Felania " serricata appears congeneric with 3Idtha, H. & A. A^., = Mittreay 

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



154. Lasen 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 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 Cali- 

 fornian and Japan coasts. Similar and pei'haps 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. 



156. For this species, corbuloides, and other angular forms, the name Bornia rnay 



be revived in a resti'icted sense. (A. Ad.) 



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



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

 166. This is almost certainly = ^wo^/o«to ///r/^frt, Val. 

 168. Dr. Dunker renamed this shell M. Adamminm, P. Z. S. Nov. 1856. 



177. The subgenus Adula may be enlarged to include tliis and other nestling 



? Lithophaf/i, wliich often adhere by byssus, like Modiola. 



178. Liosolenns is quite distinct from Mt/filinierin, which appears simply an aber- 



rant form oi Lyonsia. Other " Lithophagi'^ probably rank with it. 



30 



