the appearance of being, wave-striated by elevated radial striae. The sculpture of the shell, on 

 spots where the epidermis has been lost, consists of elevated radial striae, a few concentric striae 

 are not very conspicuous. Inside of shell white, smooth, with a few impressed striae, especially 

 near the margin of the front slope. 



Long. 5, lat. 3, alt. i 1 /, Mill. 



This species resembles by its shape and epidermis, my C. oblonga, but is distinguished 

 by its sharper striae and the position of the nucleus, which in striata is placed much more 

 posteriorly. Both specimens are broken, I have described the best one, which gives a perfect 

 idea of the species, as only one side of the posterior slope is slightly defective. The epidermis of 

 the other specimen, is less fibrous, the striae are more crowded, this however may be individual. 



The foot has two epipodial filaments. 



The radula has a rhachidian tooth (R) with a subquadrate body, with an elongate 

 front margin, the sides are slightly convex, the front angles rounded, the tooth has a simple 

 cusp, larger than in any of the preceding species ; the front and side margins are thickened ; 

 the first (1) and second (2) laterals have tricuspid, the third (3) a simple cusp; the fourth (4) 

 has the usual shape, but is more elongate, than in most species. The uncini (U) have very 

 inconspicuous denticles. 



From the descriptions of the shells and radulae of the new species of Cocaclina, it is clear 

 that species nearly allied in their shells, still differ in their radulae, especially the rhachidian 

 tooth is characteristic, for though the first and second laterals, have nearly always three denticles, 

 they prooved to be inconstant. The third lateral has invariably a simple cusp and a body, 

 the shape of which is not easily traced with sufficiënt accuracy, on account of its being always 

 more or less covered by the fourth lateral, which is also less characteristic, and varies very 

 much in appearance, if it is turned a trifle towards the right or left. The value of the rhachidian 

 tooth for distinguishing the species, is shown at once, by comparing this tooth in the present 

 species {striata) with that of C. oblonga, the shells differing only in the position of the nucleus 

 and slight seconclary characters. 



The epipodial filaments were not always very conspicuous, however I have found traces 

 of them in every species. 



Fam. Turbinidae. 



Phasianella Lamarck. 



1 . Phasianella histrio Reeve. 



REEVE. Conch. Ie. Vol. XIII, Phasianella. fig. 15. 

 Stat. 240. Banda. 9 — 45 M., black sand. 2 Spec. 



Banda is a new locality for this species, which Reeve has mentioned only from the 

 Philippines. I have seen also subfossil specimens from Celebes. 



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