NO. 12 STRONG AND HERTLEIN : MARINE MOLLUSKS 195 



This species is named for Captain August Gissler who spent much 

 time on Cocos Island seeking hidden treasure reported to have been left 

 on the island by pirates. 



Strombiformis healeyi Strong & Hertlein, new species 



Plate 18, Fig. 7 



Shell minute, regularly elongate-conic, smooth, polished, uniformly 

 pale brown, with the appearance of a darker subsutural band caused 

 by the basal portion of the preceding whorl shining through the upper 

 portion of the following whorl ; whorls 8, early whorls well rounded, 

 later whorls flattened, sutures indistinct; periphery obscurely angulated; 

 base short, well rounded, aperture broadly oval; outer lip slightly 

 thickened at the edge, decidedly protracted or drawn forward in the 

 middle; inner lip short, curved, reflected and appressed to the base 

 posteriorly; parietal callus thin. The type measures: length, 2.1 mm; 

 diameter, 0.6 mm. 



Holotype: No. 742 (Calif. Acad. Sci. Paleo. Type Coll.), from 

 Loc. 27,229 (C.A.S.), dredged in from 3 to 9 fms. in Bahia Honda, 

 Panama. L. G. Hertlein collector. Seven additional specimens were 

 dredged at the same locality. 



This minute species is probably nearer to Strombiformis hurragei 

 Bartsch-"* from the Gulf of California than to any other west coast 

 species. It differs in the smaller size, more slender form, and in the 

 protracted outer lip. 



This species is named for William Healey Dall whose work has 

 added so much to our knowledge of west American mollusks. 



Pyramidella (Pyramidella) hancocki Strong & Hertlein, 



new species 

 Plate 18, Fig. 12 



Shell regularly elongate-conic, dull brown ; nuclear whorls having 

 their axis at nearly right angles to and about one half immersed in the 

 first postnuclear whorl, above which the edge appears; postnuclear 

 whorls 12, flat sided, high between the channeled sutures; periphery of 

 the last whorl marked by a distinct sulcus; entire surface marked by 



'^'^Strombiformis burragei Bartsch, Proc. U. S. Nat. Mus., vol. 53, August 

 13, 1917, p. 345, pi. 47, fig. 5. "Dredged in 3 fathoms at the head of Concepcion 

 bay, Gulf of California." 



