216 PROCEEDINGS OF THE ACADEMY OF [Junt\ 



Acteocina honoluluensis n. sp. Fig. 3. 



This species is similar to A. sandivicensis in size and sculpture. 

 It differs by the noticeably longer spire and the projecting nucleus,. 

 the uptilted whorl being wholly exposed. The columellar fold is 

 slightly more prominent. 



Length 4.3, diam. 1.65 mm. 



Off Honolulu in 6 to 8 fathoms, with A. sandwicensis. Type No. 

 117070, A. N. S. P., from Mr. Thaanum, collected by D. B. Kuhns. 



Atys kuhnsi n. sp. Figs. 4 a, b, c. 



The shell is narrowly umbilicate, oval, the diameter about two- 

 thirds of the length; widest slightly above the middle; thin, semi- 

 transparent, white, opaque white at base and vertex, marked with 

 narrow, irregularly waved (sometimes branching) tawny or cinnamon- 

 brown streaks. The surface is glossy, with sculpture of engraved 

 encircling grooves; the intervals being closely sculptured with 

 circular striae near the ends, but smooth towards the middle, where 

 the grooves are wider apart (and, except in the largest individuals,, 

 there is a smooth zone in the middle, which narrows progressively 

 with age). The vertex has a very small and shallow concavity about the 

 posterior axis. The axis posteriorly has a moderate, obliciue fold. 

 The columella is narrow, nearly straight, but there is a small promi- 

 nence below the middle. The aperture is narrowly rounded anteriorly. 



Figs. 4a, b. — Atys kuhnsi. 4c white variety erf same. 

 Fig. 5. — Atys semistriata. 



Length 15.8, diarri^ 10-mm. (type, fig. 4a). 



Off Waikiki, Oahu, in 25 to 50 fathoms, D. B. Kuhns, 1917; type 

 and paratype No. 117074, A. N. S. P. 



Two specimens, out of eight received from Mr. Thaanum, are 

 pure white, without markings. It is an exquisite shell, which may 

 appropriately be dedicated to Mr. Kuhns, who has dredged success- 

 fully over very difficult, bottom on the kona shore of Oahu. 



