594 PROCEEDINGS OF TEE NATIONAL MUSEUM. tol. 55. 



and a little longer than the processes; the eggs are arranged in 

 or 10 rows which are twisted inside the tubes. 



hitemal specifiG characters of female. — Ovaries paired, one on 

 either side, in front of and dorsal to the cement gland. Each sends 

 out a long oviduct, irregularly coiled to the right and left and 

 filling the space between the intestine and the lateral wall of the 

 trunk, with the white eggs appearing at scattered intervals. The 

 coils are separated and held in place by dorsoventral strands of 

 muscle arranged in irregular transverse rows. In general they turn 

 forward along the dorsal surface of the trunk and backward along 

 the ventral surface to the vulvae, but all the convolutions are very 

 irregular. The eggs assume nearly their full size on issuing from 

 the ovary and then gradually mature while passing through the long 

 oviduct. 



At the posterior end of the genital segment and nearer the ventral 

 surface on either side is a cement gland, which is long and cylin- 

 drical, the anterior end curved in toward the midline, the posterior 

 end passing into a very short duct which empties into the oviduct 

 near the vulva ; neither gland nor duct shows any real segmentation. 



A fairly thick layer of chitinogen tissue similar to that found in 

 the Lernaeidae covers the whole lateral surfaces of the genital seg- 

 ment around the ovaries and fills the posterior lobes. Its inner sur- 

 face is raised in small rounded elevations of irregular shapes and 

 sizes, and in the posterior lobes it is divided similarly into irregular 

 masses. 



Color. — Head white and opaque, the knobs tipped with dark- 

 brown pigment; neck transparent and colorless, the digestive tube 

 and muscle bands showing opaque and white. The wrinkled section 

 at the base of the neck is a bright crimson; the genital segment is 

 transparent and jellylike, with a decided orange-yellow tint, the 

 ovaries are darker and more opaque, the eggs are snow white. The 

 posterior processes are jellylike, with a decided yellow tint; the 

 egg strings are yellowish white, turning to a beautiful maroon on 

 ripening. In preservatives the different regions lose their trans- 

 parency and become a uniform gray-white, while the crimson patch 

 on the neck sometimes becomes dusky, but often regains its bright 

 crimson color after clearing in clove oil. 



Total length, including posterior processes, 55 mm. Head, 3 mm. 

 long, 4.50 mm. wide. Neck, 16.50 mm. long, 1.25 mm. wide. Trunk, 

 17mm. long, 4 mm. wide. Posterior processes, 18 mm. long, 1.50 mm. 

 wide. One specimen was 70 mm. long, with the other measurements 

 in proportion. 



Specific chqj'acters of the male. — Body plainly segmented with the 

 regions well separated from one another. Ccphalothorax consider- 

 ably more than half the entire length, the anterior portion of it 



