1917.] 



NATURAL SCIENCES OF PHILADELPHIA. 



47 



THE REPRODUCTIVE ORGANS OF 

 EPIPHRAGMOPHORA CALLISTODERMA P. and F. 



BY H. A. PILSBRY. 



This species proves to belong to the subgenus Helminthoglypta. 

 There is a large dart sack, bearing a two-branched mucous gland. 

 The slender duct divides into two oblong bulbs, which end in slender 

 terminal portions longer than the bulbs, and folded down upon them, 

 as shown in the detail, fig. la, where the terminal branch of the left 



Fig. 1. — Genitalia of E piphragmophora callisioderma, only the terminal ducts of 

 the female organs drawn, d.s., dart sack; d.sp., duct of the spermatheca; 

 epi., epiphallus; /?., flagellum; m.gl, mucous gland; pen., penis; r.p., retractor 

 muscle of the penis. At a the two-branched mucous gland is drawn. 



bulb is cut off. The duct of the spermatheca is extremely long, and 

 no branch or diverticulum was observed. The flagellum is longer 

 than the penis + epiphallus. There is a short sheath about the 

 slender base of the penis. The limits of penis and epiphallus are 

 not obvious externally. The penial retractor is inserted 16 mm. 

 from the base of the penis. The length of penis + epiphallus is 

 30 mm.; of flagellum, 36 mm.; of dart sack 13 mm.; vagina 4 mm. 

 long. The spermathecal duct is shghtly over 60 mm. long. 

 The specimen dissected was one of the original lot. 



