1876. | NATURAL SCIENCES, OF PHILADELPHIA. 187 
greatly convoluted. The ovary (0.) is obtusely tongue-shaped and 
lobate. The oviduct is sacciform and contained two well-developed 
embryonic shells, showing the species to be viviparous, as well as 
four masses, probably consisting of less mature embryos. The 
genital bladder is small, suboval, on a short duct. ‘The penis sac 
(p.s.) is long, cylindrical, with a developed, extended median con- 
striction. The vas deferens (v.d.) enters the apex of the penis 
sac: the retractor muscle (7. p.) of the penis is inserted just above 
the entrance. There is a long, narrow, accessory organ (pr.) 
with an extended median constriction to the penis sac, perhaps a 
dart sac or prostate gland. There is a stout retractor muscle (7.) 
to the external horn-shaped swelling of the male orifice. 
Microphysa incrustata, Poey. 
Corpus Christi, Texas. A dried specimen collected over thirty 
years ago by Mr. Bartlett. 
Jaw low, wide, slightly arcuate, ends blunt, but little attenuated: 
anterior surface with numerous, crowded ribs, bluntly denticu- 
lating the lower margin. 
Lingual membrane (pl. VI., fig. tT) with 13—1—13 teeth, 5 per- 
fect laterals. The teeth are of same type as in other species of 
Microphysa, as Ingersolli (Ann. Lye. of N. H. of N. Y., XI., pl. 
Xvill., fig. c). The jaw also resembles that of Microphysa rather 
than Patula, to which I formerly referred the species. Von Mar- 
tens places it in Microphysa. Fig. b shows marginal teeth. 
_ Triodopsis inflecta, Say. 
Indiana. Mr. F. Stein. 
Genitalia as in 7. Rugeli. See Ann. Lyc. Nat. Hist. of N. Y., 
XI., pl. xvi., fig. 18. 
Turricula tuberculosa, Conr. 
Palestine. A dried specimen in Mr. Bland’s collection. 
Lingual membrane (pl. VL., fig. 3) long and narrow. Teeth 28— 
1—28. Centrals and laterals without decided side cusps or cut- 
ting points, but the central cutting point has a decided lateral 
bulge. Marginals low, wide, with one inner, oblique, large bifid 
cutting point, and two outer smaller cutting points. A marginal 
is shown in f. 
Jaw with numerous, crowded, broad, flat ribs, denticulating 
either margin. 
