Genus Latiriis. 387 



Academy of Science, Philadelphia, he has usually judged 

 correctly, and, at all events, his conclusions are worthy 

 attention ; but the off-hand way in w^hich, without having 

 even taken the trouble to enquire about the type specimens 

 in the Museums of Europe, he merges forms unknown to 

 him, as synonyms or varieties of species altogether unlike, or 

 ignores them altogether, militates much against the abiding 

 usefulness of his ambitious work — a work, in which there 

 are many good points, with much to recommend it. 



For instance, he strings together, as mere 'nomina 

 nuda,' without a word, the following species, as unidentifi- 

 able, all of which I have found in the British Museum 

 collection, and have figured one or two of them in the 

 accompanying plate. 



Latirus Zea (Mor.). A variety of Z. sanguiflims (Reeve). 

 There is a specimen in the British Museum, almost typical 

 with sanguifiuus. It should, therefore, be perhaps, rather 

 considered a synonym. 



L. neglectus (A. Ad.) = Peristernia neglectUy near P, nas- 

 so'ides (Reeve). 



L. armatus (A. Ad.)=Chascax (Watson). A most well- 

 marked species, and the omission of which from any mono- 

 graph tends much to injure that treatise. It seems a link 

 between Latirus proper and the Leucozonice. It is the same 

 as Latirus spinosus (Gray), which Mr. Tryon mentions under 

 Peristernia, as a doubtful form. 



Z. elegans (A. Ad.) near attenuatus^ which I do not, as 

 Tryon does, consider a variety only of infundibulum. L. 

 distinctus (A. Ad.), (fig. 3), a well-marked ponderously 

 sculptured shell, dark orange colour, from the Gulf of 

 Mexico, bearing some relation to L. armatus on the one 

 hand, and L. nidis on the other. It is very extraordinary 

 that this shell had not, in 1881, reached Philadelphia. 



L. Strangei (Ad.). Figured in the "Challenger" Report, 

 Vol. XV., allied to P. scabrosa (Reeve). 



