no REPORT OF NEW JERSEY STATE MUSEUM. 



covering- whole of genital segment and most of abdomen. » Gen- 

 ital segment transversely elliptical, nearly twice wide as long, 

 narrowed into neck where it joins fourth segment. Abdomen 

 transversely elliptical, terminal, little more than half diameter, 

 but much less than half length of genital segment. Anal laminae 

 terminal, small, close to anus on either side and with rudimentary 

 plumose setae. Appendages similar to those of female, with 

 usual sex distinctions in larger size of second antennae, maxillae 

 and second maxillipeds, and in an increase in number and length 

 of plumose setae on swimming-legs. Fourth legs have large 

 laminate basal joints and one-jointed rami, but nO' fold of skin 

 in basal joints, and rami not as large and rudimentary as in 

 female. Testes large, very apparent in well-preserved specimens. 

 Color as in female, but rather lighter and more transparent, with- 

 out pigment spots on ventral surface. Total length ly mm. 



(C. B. Wilson.) 



Remarks. — This species is known from New Jersey w^aters 

 by Leidy's record. It was taken from the gills of Mola luola 

 secured at Beach Haven in 1890. Leidy secured six mature fe- 

 males about an inch in length, of which three had the male ap- 

 pended. The males were about half the length of the females. 

 He also secured three other young females. 



So far as known the Mola seems to be the only host on which 

 this species has been found. 



Suh-Fainilx Pandarin.^. 



First thorax segment only fused with head, others free. Sexes 

 quite dissimilar. 



Female. — ^Carapace short, well rounded, frontal plates distinct. 

 Eyes three in number, fused on median line, lenses arranged in 

 form of triangle. One or more of free thorax segments fur- 

 nished with paired dorsal plates. Genital segment enlarged, 

 often covered with similar dorsal plates. Body stiff in conse- 

 quence of these plates and not capable of much motion. Abdo- 

 men elongate, often with lateral processes. Anal laminae large 



