278 AMERICAN JOURNAL 



squamosa interveniente ; costis longitudinalibus 7 ; spira brevi, 

 acuta ; apertura oblongo-ovata ; costis transversim alternatim 

 albis et fuscis ; apertura chocolato-fusca. 



Dimensions. — Long. 12, diam. 9 mill. 



Locality. — Kingsmill. 



Shell thick, solid, abbreviately ovate, longitudinally trans- 

 versely stoutly nodosely ribbed, transverse ribs four in number, 

 a narrow squamose rib running between them, longitudinal ribs 

 about seven in number ; spire short, acute ; aperture oblong- 

 ovate ; transverse ribs alternately white and dark brown ; aper- 

 ture chocolate brown. 



Another species of the same type as the preceding. The 

 whole surface on young specimens is covered with fine scales. 

 There are traces of transverse striae on the nodules. 



SiSTRUM TRIANGULATUM, Pease. Plate 23, fig. 15. 



Description. — T. triangularis-ovata, longitudinaliter costata, 

 costis 6-8, costis parvis decussata, interstitiis excavatis ; anfr. 

 superne angulatis, basi contracta, attenuata, undique squamosa ; 

 apertura ovata ; columella laevis ; pallide cinerea, costis trans- 

 versis luteis, apertura violacea. 



Dimensions. — Long. 22, diam. 15 mill. 



Locality. — Insl. Hawaii. 



Shell triangularly ovate, longitudinally ribbed, ribs 6-8, de- 

 cussated by transverse ribs, interstices excavated, whorls angu- 

 lated above, at the base contracted, attenuated and slightly re- 

 curved, whole surface covered with scales; aperture ovate; 

 columella smooth ; denticles on lip seven, extending its whole 

 length; color light ashy gray, transverse ribs saft'ron yellow, 

 aperture violet. 



The above species is Muriciform in shape. In sculpture and 

 somewhat in shape xQ?,emh\Q?, M. fenestratus, Ghem. The color 

 is seldom preserved, even in live and perfect specimens. 



Latirus squamosus, Pease. Proc. Zool. Soc, London, 1862. 

 Plate 23, fig. 16. 



Description. — T. fusiformi, turrita, transversim lirata, sulcis 

 longitudinalibus distantibus nodulosis, nodis compressis, oblongis, 

 interstitiis squamatis, transversim minute liratis, longitudinaliter 

 subtilissimi striatis ; anfr. ultimo subventricoso, infra contracto ; 

 spira turrita, acuta ; anfr. ad suturas spinis squamifoimibus, 

 prominentibus, erectis, ordinatim ornata ; fuscescente-rufa, liris 



