52 Moll. 
MOLLUSCA. 
beds, found in apparently recent state in the Caspian Sea ; 0. Grimm, 
Kaspinskoe more i ego fauna, i. p. 157, pi. vi. fig. 9. 
Planorhis infra-liratus^ sp. n., Westerlund, Nachr. mal. Ges. 1876, 
p. 101, Yenisei Eiver, 63° N. lat. 
Planorhis mauritianus, sp. n., Morelet, J. de Conch, xxiv. p. 91, pi. iii. 
fig. 7, Mauritius. 
Planorhis^ 3 species; Theobald & Hanley, Conch. Ind.pt. viii. pi. cli. 
Planorhis meridionalis, sp. n.. Brazier, P. Linn. Soc. N. S. W. i. p. 20, 
Tasmania. 
Planorhis weinlandi^ sp. n., Pfeiffer, Mal. Bl. xxiii. pp. 172 & 232, pi. ii. 
figs. 9-11, Hayti. 
Planorhis havayi (Crosse, 1875), J. de Conch, xxiv. p. 388, pi. xi. 
fig. 3, Guadeloupe. 
Choanomplialus ; radula like that of Planorhis. C. valvatoides and 
schrenchi, spp. nn.. Lake Baikal ; C. maachi (Gerstf.) in the same lake in 
depths of 100-300 metres. Dybowski, M^m. Ac. P4tersb. (7) xxii. 
No. 8, pp. 52-60, pis. ii. figs. 11-33, vii. figs. 1-6. 
Ancylus troscheli, sp. n., and sihiricus (Gerstf.), shell elevated as in 
A. fluviatilis, intestinal, respiratory, and genital orifices on the right 
side ; Lake Baikal. Id. 1. c. pp. 61-65, pis. iv. figs. 35-38, vii. figs. 11-15. 
Gundlachia crejndulina, sp. n., Lechmere Guppy, P. Sc. Ass. Trinid. 
1872, Trinidad. 
Siphonariidj:. 
Siphonaria denticulata (Q. G.) var. n. tasmanica and S. diemenmsis 
(Q. G.) described from living Tasmanian specimens by J. E. T. Woods, 
P. R. Soc. Tasm. 1876, pp. 14-18. 
AMPHIBOLIDiE. 
Ampullarina mimita, sp. n., J. E. T. Woods, 1. c. p. 27, Tasmania. 
PULMONATA OPEROULATA. 
Pfeiffer has completed the third Supplement to his Monograph, 
bringing up the number of described species of Ilelicina to 343, Georissa 
to 12, Chondrella to 3 ; fresh additions are given, pp. 375-421 ; a review 
of the adopted genera is also published by him in Mal. Bl. xxvi. 
pp. 77-86, 143-170. 
CYCLOPHORIDiE. 
Cyclotus quitensis (Pfr.) var. n. costaricensis, Martens, JB. mal. Ges. 
iii. p. 254. 
Cyclotus campanulatus (Martens), operculum ; id. 1. c. p. 359, Japan. 
Pterocyclus ] 3 species figured by Hanley & Theobald, Conch. Ind. 
pt. viii. pi. cxlii. 
Cyatliopoma ceylonicum and vitreum (Beddome), iid. 1. c. pi. cxlv. 
figs. 8 & 9. 
