44 CURRENT LITERATURE. 



of Messrs. Melvill and Ponsonby ; while on the other hand B. piduratus was 

 described, not from Natal as Dr. .Sturany quotes, but from " IMogadoxo, Zanzibar." 

 Further this author complains that the orif;inal describer does not state whether 

 Pupa layardi is dextral or not, but this may be (gathered from the description, which 

 refers to the right, as opposed to the columellar, lip. 



The Succincidcv are moderately represented as are the Lininccidce. The Auricu- 

 lidce are few ; we do not notice in Dr. Sturany's paper Aicricula pusilla, Melampiis 

 granifera, or Alexia myosotis. 



In the land operculata the lists differ widely. My attention has been called 

 to the exceeding s'\m\\:ix\\.y o[ Cyclotus iiatalensis, I'fr. , and Cydo2^h. klohukoivskii, 

 Morlet ; comparing the two I am entirely unable to find any distinction 

 and, as Pfeiffer's locality has never been confirmed, I regard it as erroneous. 

 Dr. Sturany omits I'omatias ( = Cydostimia, auct.) harlvigianum, lincatum, 

 aud sarcodcs, while he gives parvispirum and goudotcanum, not mentioned in the 

 other list. Of these last two species tlie former may come really from Zanzibar, 

 as Morlet was erroneous in several references in the paper quoted, and the latter is 

 also uncertain in S. Africa and may belong to Madagascar. 



There are also a few species of such genera as Cleopatra, Hydroccna, etc. ; and 

 about 14 species of Pelecypoda. 



We give below a summary of Dr. .Sturany's list to show the distribution in the 

 various families. 



Buliminidcc . 

 I'ltpidcc 

 Succineidce . 

 Vaghmlidce . 

 Onchidiidcc . 

 LimiiKidce- 

 Auriculidm . 

 Truncatcllidcc 

 Cyclophoridcc 

 Total 408 species. 



Messrs. Melvill and Ponsonby's list includes between 360 and 370 species. 



A study of the two lists leads to the idea that while one author has specially 

 devoted himself to bibliographical research, the others have dealt mainly with named 

 specimens. The two lists will stimulate research in South Africa, where, doubtless, 

 many species still await the collector. — E. K. Sykes. 



Sa.ra,Sin, P. and F. — Die Siisswasser-Mollusken von Celebes. Demy 4to, Bd. 

 I, pp. viii+104, Tf. i-xiii. Wiesbaden: 1898, C. W. Kreidel. 



In this beautiful volume the brothers Sarasin describe a large series of freshwater 

 molluscs from the Celebes, most of which are new. The work is prefaced by a short 

 account of the operculum and radula of the Melaniidcc of the Celebes, the remaining 

 pages being occupied by the descriptions of the undermentioned new genera and 

 species : — Melania toradjarum, 2Mliolarum, patriarchalis, and var. towutensis, 

 gcnunifera, monacha, scalariopsis, molesta, carota, testudinaria, v. d. Busch. , var. 

 perconica, zeamais, insulce sacrac, tomoriensis, kuli, centauries, asperata. Lam., var. 

 cclcbicola. Tylomelania, nov. gen. T. neriti/ormis, carbo, poreellanica and var. 

 connccteiis. Vivipara crass ibiocca, jJcrsculpta, lutiilenta, rudipcllis. A new genus of 

 LimnceidK — Miratesta — is described with a short account of the anatomy: containing 

 M. cclebensi's, and the vars. robusta, ampullacca and gracilis. Isidora callosa. An 

 interesting new genus — Proiancylus—\s described with two species adhacrcns and 

 pileotus, anatomical details are given of the latter. Of the Lamellibranchiata, 

 Corbieula mantannensis and possoensis. 



The work is illustrated by 6 not particularly clear Meisenbach plates, and 7 

 lithographic plates by Werner and Winter which leave nothing to be desired. The 



