Quarterly Journal of Conchologv. i6i 



regarded as forming the transition from Stenogyra and its allies to 

 Afegaspi?-a. — C.P.G.] 



M. Crosse then gives a revised diagnosis of the genus, and enu- 

 merates and describes the species. 



1. Rhodea Pfeifferi, Crosse (PL i. figs, i, \a, and i^). This is 



the R. Californica of Pfeiffer. The name CaUforiiica involves 

 an error of locality, the species being really from New Gran- 

 ada. [ There has been some discussion as to whether a 

 geographical name found to be erroneous should be altered. 

 M. Morch in an article in the Malakozoologische Blaetter says 

 not, any more than a man named Armstrong or Schwartz has 

 his name changed because he is weak or fair complexioned, 

 but we are inclined to think that in cases such as the present, 

 where from the rarity of the species the first name has not 

 obtained a very wide circulation it is better to correct a glar- 

 ing error. — C.P.G.] 

 R. Pfeifferi is the smallest species of the genus. 



2. R. gigantea, Mousson (PI. i, figs. 2, 2a, and 2b), as its name 



indicates, is the largest species, and at the same time it 

 is that in which the generic characters are most strongly pro- 

 nounced. It has been found near Bogota and Sonson. 



3. R. Wallisiana, Dohrn (PI. i, figs. 3, 3^7, 2,^) very remarkable as 



a reversed shell. Its spire is more inflated than that of the 

 other species, causing some resemblance to the Clausilia of 

 the South American section Nenia. 



Mousson. A. — Coquilles recueillies par M. le Dr. Sievers dans 

 les contrees Transcaucasiques (Shells collected by Dr. Sievers in 

 Transcaucasia). — Notice II, pp. 24 — 51. 



A supplement to the article in the number of the Journal for 

 July 1873. Additional information is given as to species mentioned 

 in the former article, and the following new species are described : — 



Hyalina ( Mesomphix) semisculpta, Mous. (PI. II, fig. i), Persian 

 coast of the Caspian; Belix (Fruticola) septemgyrata, (PL II, fig. 2)^ 

 Kers; H.(campylea'i) appeliana {?\. II, fig. 3), Kislovodsk, Cau- 

 casus; H. (Macularia) Ghilanica, (PL II, fig. 4), Ghilan, Persia; 



