POTAMIDEB, 



; ;t on the body whoH>. tonniiiLr obscure nodule- : yellowish or 

 broNMii-h. LciiL r tli. "> mill. 



difn Hi-' to,,; M> ilif< 1-,-uiii-nii nni] Jt/nck Seas. 



\\ /', Homes, a fossil form, and ('. y///>-/V//o/. 



.IcH'revs. Tin- laM-nanied would liavc priority, but (inuld used the 

 name tor another >pecies six vear> earlier. Montt-rosato has cnuin- 

 eratcd var>. /////////, -u.t<ifu and lxi/!<>/ii/<i, but without description. 



of It/ft in in. 



\\. OBTEA, 1). ( IM.RKOKI.AVA and var. < i:< < i;.\, \\. 



and B. QALACT1B, M>rch. Sf. 77/o/////x. If. /. 



B. YUCATECANUM, Dull. Yucatan Strait. 



\\. RUGULOetTM, 1). VK IM M, B. BICOLOR, B. 



B. I.ATI-M, B. i:\ii.K.allofC.B.Adams. 



B. ARMII.I.ATrM, B. FAS-I'KilATfM, Car]). ( '<t1ifnrni<i. 



\\. M ri:\s, Carp. C. St. Lucas, L. ('<ili'f<,n,;<i. 



\\. MINIM I'M, B. TURBONILLOIDES, and B. SEMILJEVIS, Teilisoil- 



W ..... Is. Tamntitia. 



B. I. \II.K. Hllttoll. .V' |0 Xi;ilu)n1. 



\\. i i 1:1 1:1 i.i...iii>s, Martens (^. eitn-tnw and />. Kirki, Hntton). 



/' nJ'inil. 

 B. CHA I'I( n.ATl M, Goilld. Hnnt/knnj/. 



B. SCAI.ATTM, Dunker. J<tjmn. 



Genus POTAMIDES, Brong., 1810. 

 Subgenus PYRAZUS, Montfort, 1810. 



r. i :I-.I:NINI -. Bm.ir. PI. 31, fig. :51. 



l.-iiLMtiidinally plicate, spirally ridirrd, anirulatc.l. nuln>- at tin- 

 angle ; dark chocolate color, spin- usually lighter colored tmv:ml> 

 the apex, aperture pale fawn color. Length, 4 in. 



.1 a. *t rn/ in, X. 



I'. P\ M i' DS, 8owb, IM. 81, tiir. 82, 



( 'hocolat<' colored or brownish, >pirally striated, whorls with an 

 acute spinose-nodose angle. Lonirth, ]'> in. 



I '<! n'li/ni to }'<i/j/uraiso. 



/ C. 11 n ,},], Iti , Yal., i^ a .-ynonyiu. 



