46 CLASSIKICATION. 



into a pair of horn-like pouclies. One pair seminal receptacles. No co])ulatory 

 spines. Gills absent. Type of genus 

 D. pacijica, sp. nov. 



With characters of the genus. Japan, (p. 93.) 



Dorymenia, gen. nov. 



Vermiform, body terminating posterioi'ly in a finger-shaped elongation. 

 Radula polystichous, with 48-51 longitudinal rows of 22 teeth each. One pair 

 of seminal receptacles. A pair of long copulation spicules closely associated 

 with a pair of globular coeca likewise opening separate!}' into the cloaca. Type 

 of genus 

 D. acuta, sp. nov. 



With the characters of the genus. California, (p. 95.) 



Strophomenia Pruvot, 1899. 



Body elongated, cylindrical, tlie thick cuticle penetrated by acicular spicules 

 and closely crowded vesicular ]iapillae; radula and salivary ducts, caudal sense 

 organ sometimes absent (?); two distinct genital openings into the cloaca. 

 Type of genus, S. lacazei. 

 S. farcimen, sp. nov. 



Length 18 by 2 mm. Papillae smal', closely crowded. Radula with 15 

 transverse rows of 24-28 teeth. 19 seminal receptacles. Japan, (p. 119.) 

 S. ophidiana, sp. nov. 



Length 43 by 2.5 mm. Pajiillae fairly numerous. No radula. 23 small 

 seminal receptacles. Japan, (j). 112.) 

 S. reguhiris, sji. nov. 



Anterior end missing. Papillae small, closely crowded. 12 seminal recep- 

 tacles. Japan, (p. 116.) 

 .S'. scandcns, sp. nov. 



Length 32-39 by 1.6-2.1 nun. diamter. Papillae crowded. No radula. 

 15-18 seminal receptacles. Hawaii, (p. 106.) 

 S. spinosa, sp. nov. 



Length 28 by 1 mm. Papillae few. Radula small, monoserial or biserial 

 with 8 transverse rows. 12-31 seminal receptacles. Jajian. (p. 122.) 

 S. triangularis, sp. nov. 



Length 12 mm. by 1.6 mm. diameter. Triangular in cross section. Radula 



