70 Moll. 
MOLLUSCA. 
, Opeas suhula (Pfr.), radula and jaw : Fischer & Crosse, 1. c. pi. xxix. 
figs. 1-3. 
Opeas viviparum, sp. n., Miller, Mai. Bl. xxv. p. 197, Ecuador. [Several 
species are already known to be viviparous.] 
Subulina (Beck). Generical characters discussed, with anatomy, jaw 
and radula of S. ociona (Chemn.), and notes on geographical distribu- 
tion ; Fischer & Crosse, 1. c. pp. 627-632, pi. xxviii. figs. 1-7. 
Subulina lirifera and cylindrella (Morelet), chiapensis (Pfr.), sargi 
(Crosse & Fisch.), octona (Chemn.), Guatemala, and trochlea (Pfr.), 
Yucatan, described and figured ; iid. 1. c. pp. 633-642, pis. xxv. & xxvi. 
Subulina melanoides^ sp. n., Wollaston, Test. Atlant. p. 660, St. Helena. 
Lia maugeri (Wood), varieties in colour ; Nevill, Handl. Ind. Mus. 
p. 202. 
Eucalodium sumichrasti, sp. n., and hlandianum (Crosse), var. n., 
Crosse & Fischer, J. de Conch, xxvi. p. 260, Mexico. 
Perries ia, g. n. ; sinistral, fusiform, many-whorled, truncated at the 
summit, aperture elliptical, peristome continuous, expanded, columella 
twisted, subdentate, and truncated. P. clausili(x,formis\jliif-\ sp. n., 
Dorey, New Guinea, Tapparone-Canefri, C. R. Ixxxvi. p. 1160, J. de 
Conch, xxvi. p. 169, and Ann. N. H. (6) ii. p. 111. 
Clausilia. Several remarkable anatomical differences between some 
species, chiefly in the insertion of the retractor penis muscle, the situa- 
tion of the sinstral upper tentacle, when retracted, at the side of the 
genital organs, and the existence of a peculiar duct between the uterus 
and the stalk of the receptaculum seminis (stalked vesicle), pointed out 
by F. Wiegmann, JB. mal. Ges. v. pp. 167-169, with woodcut. He also 
gives the anatomy of the large Japanese C. reiniana ; it differs from the 
few anatomically known European species by the length of the penis, 
and the insertion of the retractor muscle quite at its hinder end ; 
pp. 202-207, pi. viii. 
Clausilia. 0. Bottger gives a list of all known species, arranged in 
32 primary sections, many of them with several subdivisions ; they are : 
1, Balea (Prid.) ; 2, Reinia (Kob.), type 'oariegata (A. Ad.) ; 3, Alopia 
(H. & A. Ad.) ; 4, Triloba (Vest), type G. sandrii (Kiist.) ; 6, Clausili- 
astra (Moll.), type laminata (Mont.) ; 6, Herilla (H. & A. Ad., modified), 
type dacica (Friv.) ; 7, Siciliaria (Vest), type grohmanniana (Partsch) ; 
8, Delima (Hartm., modified), comprising gibbula (Ziegl.), stigmatica' 
(Ziegl.), itala (Martens), Icevissima (Ziegl.), &c. ; 9, Medora (H. & A. Ad., 
modified) ; 10, Agathylla (H. & A. Ad., modified) ; 11, Cristataria (Vest), 
type strangulata (Fer.) ; 12, Albinaria (Vest) ; 13, Carinigera (Mollend.), 
C. eximia (Mollend.) ; 14, Papillifera (Hartm., modified) ; 16, Dilataria 
(Mollend.), type succineata (Rossm.) ; 16, Phcedusa (H. & A. Ad.), India, 
Malayan Islands, China, and Japan; 17, Serrulina (Mouss.), type serru- 
lata (Midd.) ; 18, Fusulus (Fitz., modified), type interrupta (Ziegl.) ; 19, 
Pseudalinda (Bottg.), type montana (Stentz.) ; 20, Uncinaria (Vest), type 
turgida (Rossm.) ; 21, Mentissa (H. & A. Ad., modified), type gracili- 
costa (Ziegl.) ; 22, Euxina (Bottg.), comprising C. duboisi (Charp.), stru- 
mosa (Friv.), circumdata (Friv.), somchetica (Pfr.), mccsta (F(^r.); 23, 
Alinda (H. & A. Ad., modified), G. plicata (Drap.), and biplicata (Mont.) ; 
