1880.] NATURAL SCIENCES OF PHILADELPHIA. 45 



specimen ; the cuticula of the lip disk as above. The tongue with 

 ten rows of plates, further back eleven developed and two younger 

 rows, the total number thus twenty-three. In the posterior rows of 

 the tongue there were as many as thirty-four dental plates on each 

 side of the rhachis ; they resembled those above described (fig. 6, 7). 



The salivary glands yellowish, ribbon-shaped. The stomach as 

 above. The anteriorly proceeding part of the intestine 7.0 mm. long, 

 by a diameter of about 2.0 mm. ; the receding part about 20.0 mm. 

 long, by a diameter of 1.5 mm. In the stomach and the rectum were 

 pieces of a Keratospongia and different Diatomacea. The liver 23.0 

 mm. long, by a breadth and a height of 11.0 mm. ; the anterior end 

 truncate, with a median deep and narrow slit for the oesophagus and 

 for the intestine ; the right anterior half of the liver rather excavated, 

 especially beneath ; the substance of the liver yellow. 



The foremost glandula sanguinea about 4.5 mm. long, by a breadth 

 of 2.5 ; the posterior 4.0 mm. long, by a breadth of 2.5 mm. ; both very 

 flattened (about 0.8 mm. thick), grayish-yellow. The kidney with its 

 whitish network, contrasting prettily with the yolk-yellow hermaphro- 

 ditic gland ; the urinary chamber not wide ; the tube on its floor thin. 



The hermaphroditic gland clothing nearly the whole liver (with its 

 posterior end), as in the former specimen. The anterior genital mass 

 about 11.5 mm. long, by a height of 9.5 and a breadth of 5.0 mm., the 

 ducts also projecting 3.0 mm. The ampulla of the hermaphroditic duct 

 yellowish-white, about 35.0 mm. long, by sr diameter of 1.25 mm., run- 

 ning across the upper part of the left side of the genital mass, and 

 forming several windings on the anterior part of the upper margin. 



The large prostate as above (fig. 8b), dirty yellow ; 7.5 mm. long, 

 by a diameter at the upper end of about 4.0 mm. ; the part (fig. Sc), 

 from which the spermatoduct proceeds, much brighter than the rest of 

 the organ. The thin spermatoduct forming (fig. 8) a little coil at the 

 upper end of the penis; when unrolled about 12 mm. long. This last 

 (fig. 8rf, 9) organ strong, about 4.0 mm. long, by a diameter of 1.5 

 mm. ; the prominent orifice in the vestibulum (fig. 8e) with strong 

 longitudinal folds; the glans conical, filling nearly half (fig. 9) of the 

 cavity of the organ, the surface (under a power of 350) smooth. The 

 spermatotheca whitish, spherical, with a diameter of 3.5 mm. ; the 

 spermatocysta short, sausage-shaped, about 4.0 mm. long, of reddish- 

 yellow color. The duct from the spermatotheca to the vagina rather 

 thick, 3.5 mm. long ; the vagina larger than the penis, 6.0 mm. long, 

 by a diameter of 2.5 ; the inside with fine longitudinal folds, and with 



