Xofrs on JfacrorpjYfmus Kicncri. efr. 127 



VIII. — Xotes on Macroceramus Kieneri, Pfr. and M. pontificus, 



Gould 



BY THOMAS BLAXD. 



Read January :24th, 1661. 



MacrocefuiHds KieiitrL Pfr. 



Dr. Pfeiffer described Macroceramus Kieneri as a Bulimus, 

 in Proc, Zool. Soc, 1846, and later, in Mon. Hel. Viv., II, 79, 

 1848, as follows : 



T. breviter rimMta, cylindraceo-turrita, tenuis, oblique confertim costata, 

 fusco-corneo et albido irregulariter marmorata ; spira turrita, apice acu- 

 tiusculo nigricans ; sutura profunda, crenata ; anfr. 13 convexi, ultimus \ 

 longitudinis subiequans, basi obsolete unicarinatus ; apertura lunato-circu- 

 laris ; perist. simplex, undiqiie expansum, marginibus conniventibus, dextro 

 valde arcuato, columellari dilatato, patente. 



Long. 18, diam. anfr. antepenult. 6 mill. Ap. 4J mill, longa, 4J lata. 

 Habitat in Honduras. 



In the Proc. Boston Soc. N. H., -Ill, 1848, Dr. Gould de- 

 scribed Pujoa pontifica, and the following description is given 

 of the species, as Cylindrella pontifica, in Terr. Moll., II, 306, 

 Plate LXIX, fig. 1. 



Shell fusiform, attenuated-cylindrical, whitish, or grayish clouded and 

 marbled with brown ; spire acuminate ; whorls from 9 to 12, rounded, 

 with numerous oblique, prominent striae, or ribs ; suture impressed, crenu- 

 lated by the extension of the alternate ribs across it ; aperture rounded, ob- 

 lique ; lip thin, somewhat reflected ; axis impressed, not truly perforate. 

 On the last whorl, a colored line revolves : this is sometimes raised a little 

 from the surface, and sometimes is sharp like a delicate carina. 



