NATURAL HISTORY OF THE ISOPODA-RICHARDSOX. 



<)<)5 



(«) (b) 



Fig. 6.— Audomex of (a) Synidotea rit- 



TERI AND OK (h) S. CONSOI.IDATA. X 10. 



Dr. James E. Benedict has identified with S. comolidata, and figured 



in his paper on the genus Synidotea^^ 



these tubercles are present, but very 



minute); in the shape of the terminal 



segment of the body, it being much 

 broader, and tapering 

 very gradually to a 

 broadly rounded ex- 

 tremity, which has a 

 slight median notch 



or excavation in S. r Uteris while in 8. consolidata the 

 terminal segment of the body is narrower, and tapers 

 to an extremity marked by two pronounced t<'oth or 

 angulations separated by a deep median notch. 



Specimens of the same size were taken in making 

 the above comparisons. 



ASELLOTA or ASELLOIDEA. 

 Family JANIRID.E. 



JANIROPSIS KINCAIDI, new species. 



Color of body light brown, profuseh' and densely 

 covered with black markings. 



Head wider than long; frontal margin nearly 

 straight, with lateral angles round- 

 ed. Eyes large, black, situated 

 some little distance from the lateral margin. First 

 pair of antennae short; flagellum consisting of only 

 eight joints in the female, of ten in the male. Sec- 

 ond pair of antenna? lost in all the specimens. 

 Maxillipeds with palp consisting of 

 five joints, the first three of which 

 are very much dilated. 



First segment of thorax with lat- 

 eral margins straight; epimera 

 rather bilobed and occupying most 

 of the lateral margin of the segment. Second, third, 

 fourth and fifth segments with antero-lateral angles 

 produced into rounded lobes. Epimera of second and 

 third segments situated about the middle of the lateral 

 margin; those of the fourth and fifth segments occu- 

 pying more of a posterior position on the lateral mar- 

 gin. Epimera of the last two segments situated at the post-lateral 

 angles of the segments. 



Fig. 7. — Janiropsis 

 kincaidi. x 20.^. 



Fig. 8.— Maxii.i.iped of 



.IaNIROPSIS KINCAIDI. 



X77. 



Fig. 9.— Last tho- 

 racic segment, 

 abdomen, and 

 uropoda of Jani- 

 ropsis KINCAIDI. 

 X20i. 



«Proc. Acad. Nat. Sci. Philad., 1897, p. 393. 



