20 BULLETIN OF THE 



Station. 



N. Lat. 



W. Long. 



Fathoms. 



Specimens. 



344 



40° 1' 0" 



70° bb' o" 



129 



1 



345 



4U° 10' 15" 



71° 4' 3U" 



71 



3 



Also taken by the U. S. Fish Commission, in 51 to 155 fathoms, off Martha's 

 Vineyard, in 1880 and 1881. 



Two specimens from Fish Commission Station 874, 85 fathoms, give the 

 following measurements : — 



Sex ..... .' & ? 



Length, from front of carapax to tip of abdomen . 12.0 mm. 11.2 mm. 



Length of eye-stalk 1.6 1.5 



Greatest diameter of eye 1.1 0.9 



Length of right chehped 15.2 11.2 



" chela 6.0 4.4 



Breadth of chela ' ... 2.4 1.8 



Length of left cheliped 13.6 10.0 



" chela 5.0 3.6 



Breadth of chela . - 1.1 1.0 



Length of first ambulatory leg, right side . . . 16.1 12.8 



PARAPAGUBID^J. 



The genus Parapagurus differs so widely from all other Paguridea in pos- 

 sessing trichobranchise instead of phyllobranchiae, that it ought, undoubtedly, 

 to be separated as a distinct family on this character alone. 



Parapagurus pilosimanus Smith* 



Trans. Conn. Acad., V. p. 51, 1879 ; Proc. National Mus., Washington, III. p. 428, 



1881. 





Plate II. 



Figs. 4-4 a . 







Station. 



N. Lat. 



W. Long. 



Fathoms. 



Specimens. 



306 



41° 32' 50" 



65° 55' 0" 



524 



1 young. 



309 



40° 11' 40" 



68° 22' 0" 



304 



4 ' 



322 



33° 10' 0" 



76° 32' 15" 



362 



2<? 



This species has also been taken, and in considerable abundance, by the 

 U. S. Fish Commission, in deep water off Martha's Vineyard. At Station 



* A. Milne-Edwards in a recent report on the explorations of the " Travailleur," in 

 the Comptes-Rendus of the Academy of Sciences, Paris, Dec. 1881 (Ann. Mag. Nat. 

 Hist., 5th ser., IX. p. 42, 1882), states that his Eupagurus Jacobii from the " Blake " 

 dredgings (Bull. Mus. Comp. Zool., VIII. p. 42, 1880) is identical with this species, 

 of which specimens were sent to him last June. 



