TURBO. 207 



peripheriam costis 3-4 confertis serratis funieulatum. — This 

 interesting species, which varies considerably as to its ribs, 

 scales, and tubercles, belongs to Gray's genus Callopoma 

 (founded upon its remarkable operculum), of which only one 

 other species is known. Adams quotes three species, but 

 two of these, fluctiiatum and tesseUaturriy are simply 

 varieties of one. — H.uj. Panama. 



54. FLUCTUosus, f. 26, .36, 57, 80, Wood, Ind. Test., Supp. 

 pi. vi. f. 44 — fluctuatus, Reeve — Fokkesi, Jonas — assimilis, 

 Kiener — saxosus var., Kiener — tessellatus, Kiener — solidus, 

 Hanley — funiculatus, Philippi — Moltkianus, Reeve. — Testa 

 ovato-conica, solidiuscula, subventricosa, imperforata, olivacea, 

 lineis niveis viridi-umbratis longitudinaliter picta, interdum 

 virescente alba, zonis spiralibus viridis brunneo-articulatis 

 picta ; anfractus 5 convexi, plerumque superne angulati, liris 

 plano-obtusis hie illic fere evanidis cingulati ; apertura cir- 

 cularis ; columella lata, alba, longitudinaliter subcanaliculata, 

 inferne producta. Operculum extus medio album et latera- 

 liter virescens, costa lata alba spirali centrali, et liris 5-6 

 marginalibus virescentibus serratis munitum. — The type of 

 Gray's genus Callopoma, in which the operculum is very 

 much like that of the preceding species. Here again several 

 supposed species merge into one. Fig. 26 represents the 

 typical form — f. 36, Kiener's T. tessellatus — f. 80, Philippi's 

 funiculatus, which is much the same form as Hanley's 

 solidus — f. 51 is another variety allied to tessellatus, but 

 with the body- whorl regularly rounded, and of an unusual 

 colour. — Hab. West Coast of America. 



Section 9. Ninella. 



55. TORQUATUS, pi. iii. f. 22, 23, Gmelin, Syst. Nat. p. 3597 

 — heteroclitus, Kiener — lamellosus, Broderip. — Testa orbi- 

 cularis, plus minusve conica, vel depressiuscula, late et pro- 

 funde umbilicata, olivacea et viridula, aut sordide alba ; 

 anfractus 6, plus minusve angulati vel rotundati, creberrime 

 concentrice lamellati, spiraliter lirati,prope suturam nodulosi; 

 apertura circularis ; peristoma simplex ; columella alba, lata, 

 ad basin canaliculata. Operculum extus album, minutissime 

 granulosum,valide spiraliter bicostatum,etbicanaliculatum. — 

 The variety named by Broderip lamellosus (of which a young 

 specimen is figured, f. 22) is almost sufficiently distinct to 

 rank as a species. The differences, however, are only of 



