12 BuivIvETIN 2 ( 64 )> 



FC/Sl/S. 

 Fus2{S karri si, nov. sp. . PI! 4. fig's 2 & 8. 



Shell stout, broadly fitsoid, whorls eight to nine, the first three 

 smooth, the apical one slighth' immersed, generally missing, 

 balance transverseh' ribbed; ribs rounded, about eight on each 

 whorl; spiral lines very close-set and stronger at centre of whorls; 

 outer lip strongly sigmoid as .also the lines of growth ; the shell 

 has a cancellated appearance under a glass ; columella twisted, 

 canal turned upwards at base. 



Locality. — Gregg's Landing, Ala. 



Fiisusf mohri, nov. vSp. PI. 3, fig. 6. 



Shell broadly ovate, apex pointed ; whorls ten, the first five 

 ver}' small, smooth, the sixth partially so passing into the adult 

 stage ; adult whorls with six strongly developed transverse ribs 

 which are angular at the periphery ; spiral sculptu'e coarse, more 

 so at the junction with the ribs, making each one to terminate in 

 a rounded and beaded projection broader at the point than else- 

 where ; columella straight, slightly thickened at the lower half of 

 the aperture ; canal straight. 



Locality. — Matthews' Landing, Ala. 



Named in honor of Dr. Chas. Mohr, of Mobile, Ala. 



F71SUS siphus, nov. sp. PI. 3, fig. 2. 



S'.iell fusoid, whorls eight, the first three smooth, the others 

 strongly striated, costate; the lines of growth prominent, crossed by 

 fine spirals; suture impressed, banded by a raised ridge, which is 

 followed b}' a compressed space ; whorls shouldered by the ridge, 

 bod}- whorl longer than balance of shell, shouldered, the longi- 

 tudinal lines bent at shoulder so that they are sigmoid and give 

 the shell somewhat the appearance of a Plenrotoina; aperture 

 rather narrow, callus thin, the lines ending abruptl}'- in most cases 

 at the same ; outer lip smooth, canal slightly twisted. 



Locality. — Gregg's Landing, Ala. 



STREPSIDURA. 

 Strepsidiira heilprini^ nov. sp. PI. 4, fig. i. 



Shell short, stout; whorls nine, first four smooth, embryonic, the 

 fifth costate, the others with about six profoundly raised and 

 rounded transverse ribs ; surface reticulated, apex pointed ; outer 

 lip striated within ; columella twisted, bearing at the narrow part 

 far within a single fold ; canal extremeh' twisted and turned up- 

 ward at base. 



