1880.] NATURAL SCIENCES OF PUILADELPHIA. 51 



the under side flattened. The ampulla of the hermaphroditic gland 

 resting on the superior posterior part of the genital mass, whitish, 

 making a large curve, about 5.0 mm. long, with a diameter of nearly 

 1.5 mm. The spermatoduct in its first part, as near as could be de- 

 termined, rather thick than thin, not very long, forming (fig. He, 7e) 

 a little coil on the upper end of the penis. The penis (fig. 7/) cylin- 

 drical, curved, about 2.5 mm. long, by a diameter of about 0.8 mm. ; 

 the inside with many longitudinal folds ; at the upper end of its cavity 

 a low truncated conical prominence (fig. 115), with a rather wide 

 aperture (fig. lib), through which opens a little bag (fig. 11), whose 

 inside was clothed with a thin yellowish cuticula, and contained a 

 hollow, nearly colorless tube, that could be extended by tension ; it 

 was probably pointed (the point seemed broken ofl') ; its length was 

 about 0.9 mm. ; the spermatoduct opened (fig. 11a) in the upper part 

 of this bag. Hancock has (1. c. PI. XIV, fig. dc, 10; PI. XV, fig. 

 1, 2) seen the penis and the "stiletto," but he too seems (1. c. p. 220) 

 not at all clear about these organs. At the side of the opening for 

 the penis in the vestibulum genitale was another aperture which led 

 into a bag, from whose bottom projected a hard, whitish, somewhat 

 compressed conical spur (fig. Id, 10), that under the influence of nitric 

 acid grew more pellucid, but developed very little gas ; through the 

 axis of the organ down to the fine aperture on the point, passes a 

 slender tube (fig. 10), the continuation of the fine coiled duct of the 

 gland of the organ. ^ This gland (glandula hastatoria, fig. 7e, Sd) 

 overlies the upper part of the vagina (fig. 1a,i) ; it is heart-shaped, 

 of a transverse diameter (breadth) of 2.0, and a thickness of 1.0 mm.; 

 the gland did not contain any larger cavity. The spermatotheca (fig. 

 8a) whitish, nearly spherical, having a largest diameter of 2.5 mm. ; 

 filled with fatty cells and detritus ; the two ducts (fig. 8e, e) as usual, 

 the vagina rather wide (fig. 7a, b), with longitudinal folds on the in- 

 side. The spermatocysta yellowish, spherical, 1.5 mm. in diameter 

 (fig. 8b), filled with zoV.sperms ; short-stalked. The mucous gland 

 not forming quite half of the anterior genital mass, consisting of a 

 smaller anterior biconvex part, and a large flattened wing-like poste- 

 rior part ; the space between them nearly filled by the spermatotheca 



> These organs, the gland and the spur, have also been seen (1. c, PI. 

 XV, fig. 9) by Hancock, but lie does not mention them (in the text, and 

 explanation of the figures). In another of his figures (fig. 105) the spur 

 is designated (1. c., p. 248) as "male intromittent organ, ' and the (fig. 

 lOe, /) true penis as "penis-like organ furnished with a stiletto " 



