396 



A MANUAL OF AMERICAN LAND SHELLS. 



B. patriarcha 



B. Dormani is very different from alternatiis^ Schiedeanus, and deal- 

 batus. It will be described below, under B. Dormuni. With the lat- 

 ter agrees B. multilineatus and Marielinus, and no doubt Floridanus ; 

 tbat of patriarcha no doubt agrees with that of dealbatm. 



BiBliniulus patriarcha, W. G. Bixxey. 



Shell perforate, ovate, heavy, white, and wrinkled; whorls G, convex. 

 Fig. 431 the last ventricose, equaling in length five-sevenths of 



the shell; aperture ovate; peristome simple, thickened 

 within, the extremities joined by a heavy white callus, 

 the columellar extremity slightly reflected, so as par- 

 tially to conceal the umbilicus. Length, 35""" ; diam- 

 eter, 19™"^. Aperture : Length, lO"'™ ; diameter, 12°^™. 



Bullnms pairxarcha, W. G. Bixxey, Proc. Acad. Nat. Sci. Pliila., 

 1858, 116; Terr. Moll., iv,130,pl. Ixxx,fig.l3; L. &, Fr.- 

 W. Sh., i,200 (1861)).— Pfeiffer, Mai. Bliitt., 1859, 48. 

 Thaumastus patriarcha, TiiYoy, Am. Jouru. Couch., iii, 171 (1867). 

 Bulimuhis patriarcha, W. G. Binxey, Terr. Moll., v, 388. 



Mexico, at Buena Vista {BerJandiere) ; also in the Texan Snbregion. 



Named from its greater size and more antiquated appearance, as 

 compared with the allied species ; but the young iudividuals are as 

 readily distinguished as the most mature from any other. It is most 

 nearly related to B. Schiedeanus^ but differs from that species in having 

 a shorter, more rapidly acuminated spire, longer and much more globose 

 body- whorl, more lengthened and narrower aperture, and rougher sur- 

 face. 



Animal not observed. 



Bulimiilus alternatiis, Say. 



Ovate-conic, with alternate gray and brownish longitudinal vittai. 

 Fig. 432. Inhabits Mexico. Shell umbilicated, ovate-conic, 



with longitudinal lines, subequal, gray and light-brown- 

 ish vittoe ; the brown is paler, almost approaching 

 in some instances a drab ; the white vittie consist of 

 more or less confluent, transverse, irregular lines 

 and small spots ; whorls about 0, a little convex ; 

 suture not profoundly im])ressed ; labrum (in some 

 specimens) with alliickeued line or rib on the inner 

 (Mrs swl^>margin, witliin wbite, with a perlaceous tinge. 

 Length 11 inches; gretest breadth, i^o i^ich. This 

 species appears to be not uncommon iu Mexico, as many specimens 



B. altcrtinhts 

 Say.) 



