[NOTES ON AMERICAN LAND SHELLS, Voz. III. Pr. 1.] 
[Extracted from the Proceedings of the Academy of Natural Sciences of Philadelphia, 
September 26, 1876.] 
ON THE LINGUAL DENTITION, JAW, AND GENITALIA OF CARELIA, 
ONCHIDELLA, AND OTHER PULMONATA. 
BY W. G. BINNEY. 
Macrocyclis sportella, Gld. 
Oregon. Mr. O. B. Johnson. 
Jaw and lingual membrane as usual in the genus. (See Proc. 
Acad. Nat. Sci. Phila., 1875.) 
Teeth 22—1—22. The 6th tooth is the largest. The peculiar 
side spur noticed on the inner laterals of Macr. Vancouverensis 
is present in this species also. The central tooth is of same type 
as that of the last-named species, to which sporiella is most nearly 
allied by its shell. Pl. VI., fig. Aa. 
Zonites inornatus, Say. 
- Pl. VI., fig. c, represents the dentition of this species, showing 
both planes of the cusps and cutting points. The dotted lines 
show the lower plane, 2.e., the part which rests on the base of 
attachment. This is what I have hitherto shown in my plates. 
From this lower plane the cusp and cutting point bulge out later- 
ally as they round upwards. The most outward margin is the 
other plane shown, giving the widest extension of the cutting 
point. | 
Zonites fuliginosus, Griff. 
On pl. VI., fig. D, is a lateral tooth of this species showing the two 
planes described under Z. inornatus. 
Zonites(?) Bermudensis, Pfr. 
Bermuda. Mr. J. Matthew Jones to Mr. Bland. 
The specimens were living, enabling me to study advantageously 
_ the external characters of the animal. There is a distinct locomo- 
_ tive disk to the foot, but no caudal mucus pore, and no longitu- 
_dinal furrows above the margin of the foot, so that the species 
_ cannot be placed in Zonites, which has the last two characters. 
_ The external orifice of generation is quite under the mantle, not 
| behind the right eye-peduncle. 
The jaw and dentition I have already described. (Ann. Lye. 
Nat. Hist. of N. Y., X., 221.) 
The genitalia present the following peculiarities. The genita 
| bladder is small, globular, on a long duct. The penis sac is long, 
