io6 Quai'terly Jowjial of Conchology. 



Some species are represented by completely wrong figures, 



H. coiwidea., Pfr., of Barbadoes, is represented by the figure of a 

 totally different species, probably Cuban. Fig. 260 of PI. XXIV., 

 said to be H. ocailto, Sowerby [by mistake for Say] is totally unlike 

 the shell. It is said to be from New York, apart of the United 

 States where no Helicince have ever been found. 



Alcadia Brownii, Gray — A. hirsiita and Hollandi are placed in 

 the synonymy; they are in fact distinct species. 



H. B?-iarea, Poey ; Fig. 12b represents the species exactly, but 

 12 a is If. ciltata, a distinct species. 



II. mtnspiicata, Pfr., [habitat unknown] probably redescribed by 

 Pfeiffer as II. Smithiana from Haiti. 



TrochateUa virgin ca. Lea. The operculum figured as that of this 

 shell is that of T. opiina, Shuttleworth. The shell is from Haiti, 

 not from Cuba as stated. 



T. opii/ia, Shuttleworth; Fig. 102a does not represent this species 

 but T. opima, Pfr., a synonym of H. pu/chella, Gray, var. nobilis, 

 C. B. Adams. Fig. 102 b is also wrong, it may be a variety oi H. 

 Chittya/ia, Pfr., or a small T. Tankervillei. 



T. pulcheUa, Gray ; T. dilatafa, Poey, should not be in the syn- 

 onymy. 



Helicina festa, Gundlach ; as this was only a manuscript name, 

 it must give place to Poey's name of rubromarginata. H. nibro- 

 viarginata is correctly figured, but the form called H. festa is more 

 like H. fucunda, Gundlach. 



II. erythrcBa, Wright; only a MS. name, must yield to H. rubella 

 Wright. 



H. turbifiata, Wiegmann; the shell figured under this name is 

 certainly H. Zephyriua, Duclos. Reeve puts in the synonymy H. 

 ''Braiidtli" [he means Betendti^ described by Pfeiffer as interme- 

 diate between H. turbinata and Zephyrina. 



H. Zephyrina, Duclos ; Reeve places in the synonymy H. tivpica, 

 Chemn., and ^ Arnbeliana, Sowb. H. tropica is quite a different 

 species, and Arnbeliana is one of its synonyms. 



H. tridens, Shuttleworth, MS. only; probably the shell described 

 by Pfeiffer as Iitcidella ?iana. 



H. alta, Sowb.; this species is described as from Porto Rico, it 

 is nothing but H. tivchiilina, Orb., which is found both there and 

 in Cuba. 



H. spectabilis, Gundl., and H. polychroa, Pfr. MS. These are 

 given as distinct species, the latter is really a var. minor of the 

 former. 



H. castanca, Guilding; this species was briefly described and 

 figured by Sowerby in the first monograph of the Thesaurus. No 

 authority is known for attaching Guilding's name to it; probably 

 = 11. subfusca, Menke. 



