66 



CURRENT LITERATURE. 



A careful examination should be made of the living animal, and also 

 of the anatomy. The following synopsis will illustrate the more 

 important anatomical differences : — 



A. hortetisis. 



Two. 



Long. 



Short. 



Swollen. 



Globular. 



A. bourguignati. 

 One. 



Short. 

 Long. 

 Not swollen. 

 Long and pointed. 



Vestibule ... 

 Oviduct 

 Vas deferens 

 Sperm-duct ( = Patron.) 

 Receptaculum seminis 

 a — cteruleus, Cllge. (n). Probably a distinct species. 

 B — ntfescens, Moq. A well marked form with prominent lateral 



bands, which are usually black. 

 C — niger, Moq. The var. limbata, Moq. (animal black or blackish, 

 foot-fringe orange or pale yellow) is probably a form of niger. 

 There are numerous intermediate forms, showing the gradual 

 loss of the bands. 

 D—gr/sei/s, Moq. This form can always be distinguished from any 

 of those classed under e, by the absence of lateral bands or 

 lines. 

 E — -fosciatus, Moq. It is difficult to separate this variety from 



v. leucop/ueca, Moq., and v. pyrenaica, Moq. 

 F — subfusca, CPfr. The var. fallax, Ckll., is probably a minor form 

 of this variety. 

 The var. albipes, Ckll., is, I think, only an immature example of 

 the type. The lateral bands and lines vary greatly in this species. 



f To be continued. ] 



CURRENT LITERATURE. 



REVIEW. 



Marine Shells of South Africa, by G. B. Sowerby, F.L.S., F.Z.S., 

 London: Sowerby. (Pp. 89, pi. i-v. ) 



" The purpose of the present work," says the author, " is to give in a small 

 compass a list, as complete as possible, of all the known Marine Shells of South 

 Africa, with references to figures in well-known works, descriptions of new 

 species, and figures not only of these, but some that have been described from 

 time to time by other authors without figures." How far Mr. Sowerby has 

 succeeded in his purpose is at once evident, no less than 740 species being 

 enumerated, of which 323 are said to be confined to South Africa. 



The work forms a valuable addition to Krauss' well-known catalogue, and 

 will, we feel sure, be welcomed by all interested in the Mollusca as a useful piece 

 of work well done. It is well printed, nicely got up, and carefully illustrated by 

 five plates. — H. 



