250 PROCEEDINGS OF THE ACADEMY OF 
cutting point. This is better shown in the figures than can be 
expressed in words. 
The genitalia of this species is figured on pl. XIX., fig. 2. The 
testicle (¢) is small and imbedded in the upper lobe of the liver ; 
the epididymis (ep.) is long and greatly convoluted near its 
junction with the oviduct; the accessory gland (acc.) is composed 
of several tubular cseca of unequal length ; the ovary (ov.) is very 
large and sabre-shaped ; the oviduct (ovid.) is narrow, but slightly 
convoluted; the genital bladder (g. b.) is large, globular, with a 
short, stout duct entering the vagina at about the middle of its 
leneth; the penis sac (p.s.) is large, with a central constriction, 
tapering towards the apex, where the vas deferens (v. d.) enters, 
and bearing the insertion of the retractor muscle (7.) below its 
apex; it enters the cloaca close to the external orifice. 
Helix (Caracolus) Arangiana, Poey. 
Cuba. Mr. Arango to Mr. Thomas Bland. 
Jaw (pl. XXI., fig. 2) greatly arched, ends blunt, scarcely acu- 
minated; anterior surface without ribs; cutting margin with a 
blunt median projection. 
Lingual membrane very long and narrow (pl. X_XI., fig. 1), with 
33—1—33 teeth, of same type as in H.sagemon (see above). The 
lower edge of the base of attachment appears delicately fringed. 
Genitalia as in H. sagemon (see above). 
Helix (Pomatia) Sieboldtiana, Pfr. 
Japan. Received from Dr. W. D. Hartman. 
Jaw high, arched, ends but little attenuated, blunt; anterior 
surface with eight stout, separated ribs, denticulnnine either 
margin; no median projection to the cutting margin. 
nena membrane long and narrow (pl. XXI., fig. 8); teeth 
39—1—89, with 21 perfect laterals; centrals with base of attach- 
ment long, narrow, the lower lateral angles somewhat expanded, 
but blunt; median cusp long, stout, cutting point stout, blunt, 
not fencing the lower edge of the base of attachment ; ‘side cusps 
obsolete; no side cutting points. laterals like the centrals, but 
longer and wider, and unsymmetrical as usual ; the fifteenth lateral 
has a side cutting point. The transition to marginals formed as 
usual by the greater proportional development and splitting of the 
cutting point. Marginals low, wide, with one broad, oblique, 
bluntly bifid cutting point, and one short, side cutting point. 
