BULINUS. 



101 



Bulinus Iberlautlieriaiiiis.— (See Appendix.) 



SoBGE>xs ISIDORA, Ehkenb. 

 Shell ovate, undbilicated ; columella without any fold. 



Diastropha of Guilding is also used for this subgenus. I am 

 unacquainted with Ehrenberg's work, but have no doubt that his 

 name is correctly used by H. & A. Adams. 



lengthened, 

 Fig. 172. 



Bulinus integer, Haldeman. — Shell oval, with a 

 pointed spire ; whirls five, convex ; suture deep ; aperture 

 obtuse posteriorly, peritreme continuous ; labium not ap- 

 pressed anteriorly and without a fold. Color very pale 

 yellowish-brown ; labium, aperture, and varicose bands 

 white. Sent to me from Indiana by Mrs. Say. (Haldeman.') 



Physa Integra, Haldeman, Mon. No. .3, p. 3 of cover, 1841 ; 



p. 33, pi. iv, f. 7-8 (1843).— DeKay, N. Y. Moll. 81 



(1843). 

 Aplexus (Isodora) Integra, Chenu, Man. de Conch. II, 481 



f. 3556. 



My figure is a fac-simile of one of Haldeman's, whose descrip- 

 tion also is given above. 



