S. I. Smith — Crustaceans of the Atlantic Coast. 51 



Parapagurus pilosimanus, sp. nov. 



Male. The carapax is divided by the deep cervical suture, which 

 is arcuate, — not in the form of a truncated V with irregular sides, as 

 in Eupagurus. The anterior portion is slightly broader than long, 

 smooth, and almost entirely naked. The anterior margin is more 

 nearly straight than in the species of Eupagurus, biit projects in a 

 well-marked, though broad and obtuse, rostrum, each side of which 

 the margin is straight to the lateral margin, except a very slight 

 prominence between the bases of the eye-peduncles and antennae. 

 The posterior poi'tion of the carapax is but little broader than the 

 anterior portion and is only slightly expanded posteriorly. 



The eye-peduncles are slender, taper distally, are scarcely as long 

 as half the width of the fiont of the carapax, and are clothed with 

 long hall's along the upper side. The cornea is very small, almost 

 wholly terminal, and the pigment black. The ophthalmic scales are 

 small, spiniform, slender, and acute. 



The peduncles of the antennulfe are very long and slender; the 

 proximal segment is about as long as the eye-peduncle ; the second 

 and third are nearly cylindrical, though the second is slightly com- 

 pressed laterally, smooth, and almost perfectly naked ; the second is 

 about as long as the first, and the third fully twice as long. The 

 dorsal, or major, fiagellura is more than three-fourths as long as the 

 distal segment of the peduncle, is composed of about forty segments, 

 tapers to a very long and slender tip, and is densely clothed beneath 

 with hairs. The inferior, or minor, flagellum is very slender, about 

 half as long as the superior, and composed of eight or nine segments. 

 The peduncles of the antennae reach to the distal end of the second 

 segment in the antennular peduncle, and the segments have pretty 

 nearly the same form and proportions as in Eupagurus bernhardus. 

 The acicles reach to the tips of the peduncles and are densely hairy 

 above, while the rest of the peduncle is smooth and nearly naked. 

 There is no tooth or spine at the inner side of the base of the acicle, 

 but outside the base there is a prominent dentiform lobe denticulated 

 at its extremity. The flagella of the antennae extend far beyond the 

 long ambulatory legs, are very slender, smooth, and almost entirely 

 naked. 



As seen from without, the inner oral appendages do not diifer 

 essentially from the corresponding parts in Eupagurus. The three 

 or four distal segments of the endognaths of the external maxillipeds 

 are, however, more cylindrical and a little more slender than in 

 Eupagurus hernhardus. 



