300 



PROCEEDINGS OF THE ACADEMY OF 



[Nov., 



Acteocina hawaiensis n. sp. Fig. 4. 



The shell is minute, cylindric, white with several spiral series 

 of gray spots. The spire is moderately raised, of very convex whorls 

 parted by a deep suture. The initial whorl is prominent, tilted on 

 edge, smooth; following whorl very narrow. There are three post- 

 embryonic whorls. The last whorl is strictly cylindric, shouldered 

 below the suture, with rather coarse wrinkles of growth. The 

 columella is straightened above, excavated or obliquely truncate 

 below. Outer lip arches forward. 



Length 2.35, diameter 1 mm. 



Off Launiupoko Camp, near Lahaina, West Maui, in 25-75 feet. 

 Thaanum and Langford. Type 127746 A. N. S. P. 



Fig. 4. — Acteocina hawaiensis. 



Smaller and more straightly cylindric than other known Hawaiian 

 Acteocinas, further distinguished by the rather strong sculpture 

 and the gray spots. Five series of these are seen in the type, seven 

 in another example. They are chiefly visible on the back. All of 

 the specimens sent are "dead" shells; one, somewhat defective, is 

 a little larger and relatively wider than those figured. 



IX. Terebra 



Pease's notes on Hawaiian species may be found in Amer. Journ. 

 Conch. IV, pp. 123-125, and V, 86. There are no examples of his 

 Terebra assimilis Pse. (= T. contigua Pse., 1871) in the Pease col- 

 lection, Museum of Comparative Zoology. 



T . swainsoni Dh. has been discussed by Pease, who described a 

 var. inflexa, to which he referred Reeve's figure 118, of swainsoni. 

 I believe the figure was drawn from the latter species, of which Pease's 

 inflexa becomes a synonym. It is rather common off the south 

 coast of Oahu. It differs from T. nitida and plicatella, which are 

 very closely allied, by having fine spiral striae in the interstitial in- 

 tervals. The inner lip forms a raised ledge as in T. ntfida. The 



