478 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



380) the accessory legs are nine-jointed; tlie neck is constricted and 

 more or less elongated as in N'ympJion; the rostrum is short and nearly 

 hemispherical; and the dactylus bears two very large auxiliary claws. 

 The presence or absence of these claws is a good generic character ; 

 they are always two in number, are movably articulated to the dactylus, 

 and are provided with a special set of muscles by means of which they 

 are moved. It is to be observed, also, that the peculiar spines upon the 

 outer joints of the accessory legs in Fallene are very unlike those of 

 Pseudopallene. 



Kroyer figures three species of "Pallene" in Gaimard's Voy. en 

 Scand., Laponie, etc. (P. discoideo,, P, intermedia^ and P. spinipes). The 

 first of these is undoubtedly a Pseudopallene, and probably also the 

 other two, but, not having examined specimens of them, I have been 

 unable to verify this. 



Pseudopallene hispida (Stimii.) Wilson. 



American Journal of Science and Arts, vol. xv, No. 87, p. 200, 1878. — Trans. 



Conn. Acad., vol. v, p. 10, PI. Ill, figs, la to 1 e, July, 1878. 

 Pullme hispida Stimpson, Invertebrata of Grand Manan, p. 37, 1853. 



Plate II, Figure 9. 



Body oval, very broad, neck not constricted. Oculiferous tubercle 

 small, rounded. Eyes ovate, light brown. Oculiferous segment half 

 as long as the body. The second and third segments have, above, two 

 prominent conical tubercles, each of which is tipped by a hair. The 

 lateral thoracic processes are very broad and are not separated by any 

 interval; they bear, on the outer margin, two to four acute, hairy tuber- 

 cles. Abdomen twice as long as broad, truncate, hairy. 



Kostrum slightly hairy, acute-conical, as long as the oculiferous seg- 

 ment, with a constriction on each side, below, giving it the appearance 

 of being articulated at this point. The mouth is terminal and sur- 

 rounded by a rosette of filamentary processes. 



Antennoe very stout and swollen, hairy, tipped with amber-color, about 

 twice as long as the rostrum; claws of chelae blunt and rounded; basal 

 joints enlarged near their attachment; thd second joint has, on its 

 lower margin, a prominent rounded tubercle behind which the dactylus 

 closes. 



Accessory legs slender; in the female the two basal joints are short, 

 the third longer, the fourth and fifth still longer, sixth about as long as 

 the third; the remaining joints are shorter and decrease in size to the 

 last, which is spine-like and trifid at its extremity; the four outer joints 

 are armed with four or five stout, smooth, curved spines. In the male 

 these appendages are considerably longer and more slender, and the 

 fifth joint has a prominent rim or shoulder at its distal extremity, as in 

 Pallene empusa, which is armed below with a few stout spines. The 

 terminal joint is not trifid but simply claw-like; it is attenuated toward 

 the tip and abruptly incurved. 



