CURRENT LITERATURE. 69 



until their occurrence is further established. In 1879 Dr. E. von Martens 

 mentions nine species from the S.W. shores. In 1883 M. Bourguignat, unaware 

 of these two preceding papers, recorded ten species as the first recorded from the 

 Lake. In 1885 he described three more, and again in 1887 he described two 

 others, enumerating the thirteen previously known. Mr. Smith now adds the 

 following: — Viviparous victoria, V. jucundus, and V. cepoides (spec. nov. ), 

 Mulela rubens, Lam., and Limosina parasitica (Parreyss), and gives a complete 

 list of all the known shells, viz., twenty-eight. 



The fauna of this great lake appears to be Nilotic, and does not possess a 

 specialized fauna like the L. Tanganyika. Twelve of the known species have 

 been recorded from the Nile, and of the remaining sixteen species allied forms are 

 known from other lakes and rivers of Central Africa. 



Additions to the Marine Mollusca of St. Helena. (Ann. and Mag. N.H., 

 p. 129, 1892.) 

 This paper includes records of (1) Additional Indigenous species ; (2) Species 

 found on a Floating Tangle ; and 13) Marine species found inland. In section 1 

 Mr. Edgar A. Smith describes and figures the following new species :— Jeffreys ia 

 atlantica, Tellimya prodncta, and T. simillima. [This latter form is probably 

 only a variety of T. bideniata, Montagu. The grounds upon which it rests as a 

 species are certainly insufficient.] The occurrence of Mcntacuta ferrnginosa 

 (Montagu) from so southern a locality is of interest. A fact worthy of note is 

 recorded in section 3, viz., that of a large number of small shells at an elevation 

 of 700 ft. Mr. R. B. Newton has suggested that wind was the probable agent in 

 transferring them there, which seems very likely. 



Agariste n. gen. (Journ. de Conch., pp. 78-81, 1892.) 



The Marquis de Monterosato proposes a new genus {Agariste) for the fossil 

 species Emargimtla compressa of Cantraine. The characteristics are : Shell very 

 much compressed, apex capuliform, sculpture and base arched ; otherwise as 



Einargiiiula. 



New Indo-China Species, ijoum. de Conch., pp. 82-86, 1892.) 



M. L. Morlet describes ten new species of Land and FYeshwater Mollusca 

 from Indo-China, viz. : Stnpta.vis dugasti, Plectotrupis hyperteleia, Pliania [ ? ? ] 

 dugasti, Clausilia massiei, Lacunopsis dugasti, Chlorostraaa massiei, Paludina 

 laosensis, Spiraadum massiei, Dreissensia massiei, Unio dugasti. The descriptions 

 are fairly full, but none of the species are figured. 



New Species of Unio. (Journ. de Conch., pp. 86 — 94, 1892). 



M. H. Drouet thinks it worth while to describe (of course without figures) ten 

 new species of Unionidoe, from various localities. 



New Species from Bolivia. (Le Nat., p. 178. 1892). 



Mr. C. F. Ancey describes the following species from Bolivia : Cyaneorbignyi, 



Nenia orbignyi (allied to N. crossei), Odontostomus lemoinei. 



Notes on the Genus Xerophila. (Boll. Mus. Zool. Torino, No. 128, 1S92). 

 Signor Carlo Pollonera's review <>f this group of the Mollusca is one of more 

 than usual interest. The genus is divided into five groups, viz. (1) X. subprofuga 

 {X. mentita, ilvatica, trimetina, and balteata, n. sp. ) ; (2) A", wamieriana 

 (A~. wamierella and cliens n. sp. ) ; (3) X. lallemantiana (A', parca n. sp.) ; 

 (4) A", neglect a (A', stossiciana, trinacri/ia, nentsia, mendica,janalis, Sinensis, and 

 pistoriana n. sp. ); the fifth group consists of a number of new species and 

 varieties, but the validity of some of the former is questionable. 



New Land Shells from U.S. of Colombia. (Proc. Zool. Soc, p. 296-9, 



1892). 



Mr. G. B. Sowerby figures and describes the following species : — Biilimus 



euentheri, Bidimulus koppeli, B. da-costic, />'. glandinijormis, Hyalinia gomezi 



(probably belongs to the Proserpinida), Clausilia magistra and Cycloius filo-liratus. 



