44 MARINE INVERTEBRATA OF GRAND MANAN. 



which is about equal in length with the fourth, fifth, and sixth; the seventh being 

 a little shorter than the sixth. The segments of the abdomen are well defined, the 

 first five equalling each other in length, and the terminal one longer than the fifth, 

 but narrower, and rounded behind. Antennae short and thick, without flagellse, 

 with blunt tips crowned with few hairs, as are also their articulations. The inner 

 ones are directed forward, and much the stoutest, especially toward their bases; 

 while the outer ones are more slender and curve outward and backward. Fii'st 

 pair of legs exceedingly thickened, with very large ovate hands and strong curved 

 fingers. They are generally closely applied against the breast. The remaining 

 thoracic feet are very slender, terminating in sharp slender fingers, which in the 

 second pair are very long and nearly straight, and in the other pairs short. The 

 legs of the posterior jiair are a little the longest and thickest. The aml^ulatory 

 feet in five pairs are of great length and resemble those of Amphipods. The caudal 

 stylets are in length about four-fifths that of the abdomen, and consist of four or 

 five articles, with few hairs, each article becoming narrower, the last one with a tuft 

 of few hairs at its extremity. Length, .15 inch ; breadth, .02. Dredged among 

 Ascidm calloso', in 20 fathoms, in the Hake Bay. 



AMPIIIPODA. 



Caprella lobata, Kroyer. SquiUa lohata, Miill., 0. Fabr., F. G., p. 248. This 

 species is more slender than any of the others, of a bright crimson color, and an 

 inch or more in length. The first two segments are especially elongated, the second 

 bearing the arms nearly at its posterior extremity ; and the inferior antennje are 

 scarce half the length of the superior ones. It is found, not commonly, however, 

 among nullipores, in 4-6 fixthoms. 



C. SANGUiNEA, Gould, Inv. Mass., 336. A very common species in the higher 

 levels of the laminarian zone. It may be distinguished from the others by its very 

 slender antennfe and proportionally large hands. Color bright crimson. Length 

 three-fourths of an inch. 



C. LONGiMANUS, St., n. s. Body with a few spines along the back of each segment. 

 Superior antennee rather stout and twice as long as the inferior ones, which are very 

 slender. Hands very long and rather broad, with two or three teeth along the 

 inner edge ; the arras to which they belong are jilaced on the thickened posterior 

 part of the second segment. Color light-yellowish brown. Eyes red. Length 

 about three-fourths of an inch. 



C. ROBUSTA, St., n. s. This is a very large, thick, and robust species, of an oliva- 

 ceous or often a light brown color. There are numerous short spines on the 

 back, very vai'iable in size and number in different specimens. The antennte are 

 not large, the upper ones being about half the length of the body, and the lower 

 ones nearly as long and very hairy. Arms placed at about the middle of the second 

 segment, with the hands having strong teeth on the lower edge, and short thick 

 nails. Length (excluding antenna)), 1.25 inch; breadth, 0.1 inch. Dredged on a 

 rocky bottom, in 12 fathoms, back of Duck Island ledge. 



vEgina sriNosissiMA, St., n. s. Body slender, much thickened at the origins of 



