( 65 ) Tertiary Mollusca of Ala. and Tex. 13 



Locality. — Matthews' Landing, Ala. 



This beautiful species has a general resemblance to Fusus sub- 

 scalariniis Heilpr. The figure does not show the reticulated sur- 

 face well nor the extreme torsion of the canal. The drawing was 

 made from a half-grown specimen ; named in honor of Prof. A. 

 Heilprin, of Philadelphia, Pa. 



Strepsidurajj ci(s O^hh s^^. PI. 3, fig. i, la. 



Whit7ieyaJicHS Gsihh. Geol. Cal. , Paleont.,vol. i, p. 104, 



pi. 28, fig. 212, 1864. 

 It is due to Mr. G. D. Harris that the above species is identified 

 with the California form. The writer had renamed it and this 

 name is now fortunateh' suppressed. 



SIPHO. 



Sipho ci'ecfa, nov. sp. PI. 4, fig. 7. 



Shell small, whorls nine, the first four smooth ; apex pointed ; 

 shell cingulate ; lines of growth showing between the revolving 

 ribs ; suture impres.'-ed ; vhorls slighth' shouldered ; aperture nar- 

 row ; outer lip thin, smooth within ; columella thickened ; canal 

 somewhat recurved. 



Local a v.— Wood's Bluff, Ala. 



PIS A ALA. 

 Pi'san/a ( Trikviidca) Jolniso)ii, nov. sp. PI. 4, fig. 9. 



Shell small, solid, two or three embryonic whorls, five .sub.se- 

 quent ; three to four broad spiral ribs on the whorls above and 

 about thirteen on the body whorl, also fine spirals between ; 

 canal short, recurved ; outer lip dentate internall}^, with a single 

 heavy callosity or rib opposite the anterior part of the aperture ; 

 inner lip granulose above ; suture impressed. 



Locality. — Bell's Landing, Ala. 



COLUMBELLA. 



Col I//// delta /nississippic// sis M'r & Aid. PI. i, fig. 19, 19a. 



This form differs from the typical onl}' by the plaits on the col- 

 umella being nearh' obsolete. 



Z.^m///i'.— Wood's Bluff. Ala. 



MUREX. 

 Mu7^ex elegantissimiis, nov. sp. PI. 4, fig. 3. 



Shell rather solid ; whorls eight, first three embryonic with about 

 ten nodose, rounded ribs .slightly pointed at periphery of some ex- 



