1904.] NATURAL SCIENCES OF PHILADELPHIA. 5 



fourth the length of the shell, acuminate above, with a deep'and wide 

 basal channel. Columella brown, with a low, wide and very indistinct 

 basal fold, below which it is bent somewhat to the left. Parietal wall 

 covered with a thin transparent varnish. 



Length 37, diam. 8 mm. ; length of aperture 8.8 mm. ; 21 ribs on last 

 whorl. 



Length 35, diam. 7.3 mm.; length of aperture 8.7 mm.; 25'ribs on 

 last whorl. 



Fukura, Awaji. Types No. 86,004, A. N. S. P., from No. 1,352 of 

 Mr. Hirase's collection. 



This species is close to T. nitida Hinds in sculpture, but it is less 

 slender, and the last whorl is more swollen peripherally and more 

 contracted beneath. It differs from T. lischkeana in the smooth inter- 

 costal spaces. 



Parviterebra paucivolvis n. sp. PI. I, fig. 4. 



Shell lanceolate, moderately solid, white with four spiral series of 

 squarish red-brown spots, the upper series bordering the suture below, 

 two others at the periphery, and the fourth on the base. The suture 

 is widely gray-margined by transparence. Sculpture of close, fine, 

 rounded longitudinal riblets, as wide as their intervals, and on the 

 last whorl much smaller, almost obsolete. These are crossed by spiral 

 subpunctate impressed lines, which are rather widely spaced. Whorls 

 7, but slightly convex, the last, as seen from the front, longer than 

 the spire, gradually tapering downward. Aperture lanceolate, the 

 columellar margin but slightly concave. 



Length 12, diam. 3.4 mm. 



Length 11.5, diam. 3 mm. 



Yakujima, Osumi. Types No. 86,133, A. N. S. P., from No. 1,419 

 of Mr. Hirase's collection. 



This species seems most closely related to the Australian Euryla 

 brazieri Angas, which, however, has a larger aperture. Also to E. 

 pulchella Angas (Terebra angasi Try on) and E. trilineata Angas, both 

 of which differ in details of form and coloration. The small Japanese 

 T. tantilla Smith is diversely sculptured and belongs to a different 

 section. The Australian species mentioned are placed in the sub- 

 genus Euryta by Angas and Tryon, but they are not related to the 

 type of Euryta (now Mazatlania). I propose for them the genus 

 Parviterebra, characterized by the small number of whorls, absence 

 of any groove defining a subsutural band, and by the long, gradually 

 tapering body-whorl without a differentiated siphonal fasciole at the 

 base, the columella straight to its abrupt truncation below. This 



