376 0. Harger Isopoda from New England. 



podus subequal in all, armed, in the second pair only, with 

 spines. Swimming legs (last three pairs) robust, carpus sub- 

 circular, dactylus usually about half as long as the propodus. 

 Pleon broader than long. Uropoda short, rami cylindrical, 

 spiny at the tip ; the outer more slender but not shorter than 

 the inner. Length of body 4 -5mm. Carpus of first pair 1mm. ; 

 propodus 0'6mm. ; of second pair, carpus l'5mm., propodus 

 l'6mm. ; of fourth pair, carpus l'5mm., propodus l'7mm. 

 Color, in alcohol, pale honey -yellow. 



This species was dredged in 220 fathoms, in the Gulf of St. 

 Lawrence, by Mr. J. F. Whiteaves. 



jEgathoa loliginea, sp. nov. 



Body elongate oval, not suddenly narrower at the base of 

 the pleon, which is slightly dilated at the last segment. Head 

 subequally, but not deeply, lobed behind, the lateral lobes 

 being formed by the large, semi-hexagonal, coarsely reticulated 

 eyes, which cover half the upper surface of the head. Anten- 

 nulge as long as the head, eight-jointed, separated at their 

 bases, tapering to the tip; antennae more slender, ten-jointed, 

 surpassing the antennula? by the last two segments, like the 

 untennulae without evident division into peduncular and flagel- 

 lar segments. First thoracic segment shorter than the head 

 and but little broader, not embracing it at the sides, longer 

 than the following segments, which increase in width to the 

 tifth; seventh shortest. Epimera short and obtuse, not sur- 

 passing the rounded posterior angles of the segments. Lep 

 nearly' alike throughout, first pair a little more robust, last pair 

 slightly the longest, all with strongly carved dactyli. Pleon 

 longer than the thorax, tapering to the tifth segment. First 

 pair of pleopoda with the basal segment large, nearly square; 

 last pair, or uropoda, surpassing the telson : basal segment tri- 

 angular with the inner angle acute but scarcely produced ; rami 

 flat, the outer with slightly divergent sides, obliquely rounded 

 at the end ; the inner broader, triangular, with the outer side 

 longest ; cilia very short almost rudimentary. Length 13mm., 

 breadth 3'6mm. Color in alcohol yellowish with minute black 

 specks, most abundant on the pleon. Byes black. 



The only specimen in the collection was obtained by Mr. 

 S. R Clark, at Savin Rock, near New Haven, from the mouth 

 of a squid (Loligo Penlii), whence the specific name. 



Ptilanthura, gen. nov.* 



Antennulse with the flagellum remarkably developed, multi- 

 articulate, second and following segments provided with an 

 incomplete, dense whorl of fine slender hairs. This whorl is 

 interrupted in each segment upon its internal or anterior side, 

 * From TrrMv a plume, and Anthura. 



