120 BULLETIN 68, UNITED STATES NATIONAL MUSEUM. 



Island, California, in 48 fathoms, temperature 55°. 1. The type has 

 seven post-nuclear whorls and measures: Length 3.2 mm., diameter 

 1 mm. 



TURBONILLA (MORMULA) PHALERA, new species. 

 Plate 11, fig. 5. 



Shell small, milk-white. (Xuclear whorls decollated.) Post- 

 nuclear whorls well rounded, slightly contracted at the sutures, 

 marked by moderately strong, curved, protractive axial ribs, of which 

 14 occur upon the first to fourth, 16 upon the fifth, and 18 upon the 

 penultimate turn. Intercostal spaces a httle wider than the ribs, 

 well impressed, terminating at the periphery. Sutures well marked. 

 Periphery of the last whorl slightly angulated. Base short, well 

 rounded, smooth. Aperture rhomboidal; posterior angle obtuse; 

 outer lip thick, with a single, strong, internal cord, a little posterior 

 to the periphery; columella strong, somewhat twisted, with a weak 

 fold near its insertion. 



The type (Cat. no. 163267, U.S.N.^M.) was dredged at U. S. Bureau 

 of Fisheries station 2794, in 62 fathoms, temperature 59°. 6, in Panama 

 Bsij. It has seven post-nuclear whorls, having lost the nucleus and 

 probabl}^ the first post-nuclear turn, and measures: Length 2.5 mm., 

 diameter 0.8 mm. 



Subgenus DUNKERIA Carpenter. 



Dunkeria Carpenter, Cat. Mazatlan Shells, 1856, pp. 433-434. 



Turbonillas having the whorls stronger, roimded, and usually 

 shouldered, marked by strong axial ribs and strong spiral cords, the 

 junctions of which are frequently subnodulous. 



Type. — Dunkeria suhangulata. 



Doctor Carpenter, after diagnosing DunJceria laminata,^ ^^Tites: 

 "Tliis beautiful Fenelloid species may be regarded as the type of the 

 group of DunJceria." Unfortunately this species was not included 

 in the original fist, hence can not serve as type for the group. We 

 had selected the first specimen, DunJceria pauciJirata, of the four cited 

 by Carpenter in his Mazatlan Catalogue, for the type in our Synopsis 

 of the Genera, Subgenera and Sections of the Family P^Tamidefiidse.^ 

 Since then we have seen Doctor Carpenter's material in the British 

 Museum and we find that Dunlceria paucilirata is a Pyrgisculus, and 

 that the second species Dunlceria suhangulata resembles D. laminata 

 in form and sculpture and thus bears out the author's intent of tjq^i- 

 fying the group. D. cancellata must be removed to Pyrgisculus and 

 D. intermedia to Evalina. 



a Ann. Mag. Nat. Hist., 1865, p. 396. 

 bProc. Biol. Soc. Wash., vol. 17, 1904, p. 8. 



