94 B. W. Kiiukel, 



thumblike process just described, provided with a few long setae near 

 apex, distal margin of hand transverse and rather long ; finger stout, 

 with broad base and with concave margin provided with a low 

 broad triangular process. 



Epimera rather low, with ventral margins not strongly convex ; 

 pereiopods fairly stout, first and second provided with spinning 

 glands, fourth and fifth longer than others. 



Uropods and telson as in A. longimana. 



The species was represented in the collection by 2 male speci- 

 mens, the larger one of which measured 5.5 mm. in length. 



Grubia crassicornis (A. Costa, 1853) Delia Valle, 1893. 



1853. Amphithoe crassicornis. A. Costa, Rendic. Soc. Reale 

 Borbon., Accad. Sci. Napoli, vol. 1, p. 306, pi. 3, fig. 1 a-d. 



1898. Grubia crassicornis. Delia Valle, Fauna und Flora des 

 Golfes von Neapel, vol. 20, p. 464, pi. 2, fig. 12; pi. 13, fig. 18-29. 



Eyes small, nearly circular, comjDound and made up of very many 

 ocelli which are yellowish brown in the alcoholic specimens at 

 hand. 



First antennae longer than second, with peduncle about ^/a length 

 of flagellum; first johit rather stout and about as long as second; 

 third about ^'3 as long as second ; flagellum made up of large 

 number of segments which are furnished with setules distally ; ac- 

 cessory flagellum composed of single segment which is about V2 

 as long as first joint of principal flagellum. Second antennae with 

 gland cone prominent and slender; third joint of peduncle rather 

 long and about as long as fifth which is as long as fourth joint ; 

 flagellum made up of many joints, about as long as peduncle. 



Mandibles strong, well developed ; palp 3-jointed, slender, first 

 joint ' '2 as long as second, third joint shorter than second and stouter, 

 with apex rounded and provided with numerous long setae ; prin- 

 cipal cutting edge long with numerous triangular teeth ; secondary 

 cutting edge also with numerous teeth ; spine row with 6 spines ; 

 molar tubercle very large and prominent, provided with 6 or 7 fla- 

 gella. Lower lip with inner plates large, rounded, with many short 

 liairs on anterior margin ; outer plates large, with anterior margin 

 incised with deep, broad notch ; mandibular processes long, broad, 

 tapering, and widely divergent. First maxillae with inner plate small, 

 triangular, provided with a single seta on inner margin ; outer plate 

 broad, curved, apical margin obliquely truncated and provided with 

 numerous pectinate toothlike spines ; palp 2-jointed and slender, first 



