195 Jaw and Lingual Dentition of Pulmonata. 
EXPLANATION OF THE PLATES. 
PLATE XII. 
Genitalia of:— 
Fig. FIG. 
1. Bulimulus pallidior, Sowb. 6. Helix septemvolva, Say. 
2. Helix aspera, Fér. 7. Ariolimax Hemphilli. 
3. Helix spinosa, Lea. 8. Helix crispata, Fér. 
4. Limax montanus, Ing. 9. Ariolimax Andersoni, J. G. Coop. 
5. Helix arrosa, Gld. 
p.s. penis sac. v.d. vas deferens. 
v.p. vaginal prostate. f. flagellum. 
ry. retractor muscle. e. epididymis. 
g.b. genital bladder. oy. oviduct. 
d.g.b. duct of same. Vv. vagina. 
a.d. accessory duct of same. or. external orifice. 
OV. Ovary. pr. prostate. 
t. testicle. 
P PLATE XIII. 
Fic. 
A. Genitalia of Helix ruficincta, New. 
d.s. Dart sac? 
Zonites cerinoideus, Anth. Central, lateral and marginal teeth of the lingual mem- 
brane. 
C. Genitalia of Amphibulima Rawsonis, Bl. 
r. The retractor muscle of the penis sac. 
Cecilianella Gundlachi, Pfr. Jaw. 
Orthalicus undatus, Brug. var. 
Central, lateral and marginal teeth. 
Genitalia of H. Jamaicensis, Chemn. 
e. The long epididymis. 
G. Same as D; enlarged still more to show the nature of the ribs. 
H. Central, lateral and marginal teeth of same. 
I. Same. Transition and marginal teeth. 
J 
K 
mB 
Strophia incana, Binn. Central, lateral, transition and marginal teeth. 
» Same of Helix Carpenteriana, Bl. 
PLATE XIV. 
es 
IG. Lingual Dentition of :— 
Helix fringiila, Pfr. See also pl. xv, fig. A. 
Helix Jamaicensis, Ch. 
Helix Studeriana, Fér. 
Achatinella venusta, Mighels. 
Amphibulima Rawsonis, Bl. 
Glandina truncata, Say. 
Central and first-lateral tooth and part of the latter still more enlarged. 
Transition and marginal teeth of Achatinella textilis, Fér. 
An inner marginal tooth of Achatinella obesa, Newe. 
Se ES OM 
