THE ANNALS 



AND 



MAGAZINE OF NATUKAL HISTOEY. 



[FIFTH SERIES.] 



No. 28. APRIL 1880. 



XXVI. — On some Points in the Structure of a Species of the 

 11 Willemoesia Group of Crustacea." By S. I. Smith, 

 Prof. Comp. Anat., Yale Coll. 



AMONG the interesting collections of marine animals made 

 during the past two years by the fishermen of Gloucester, 

 Massachusetts, and presented to the United-States Fish Com- 

 mission for the National Museum at Washington, there are 

 two species of Podophthalmous Crustacea of peculiar interest. 

 One of these is a remarkable hermit-crab {Parapagurus pilosi- 

 onanus), which I have already described*; the other is the 

 subject of this note, and belongs to the " Willemoesia group 

 of Crustacea," which has recently been discussed by Messrs. 

 Bate and Norman in the ' Annals.' Of the latter species I 

 have seen a single male only, which was taken in 250 fathoms, 

 off the coast of Nova Scotia, north latitude 43° 10', west lon- 

 gitude 61° 20', by Capt. Thomas Olsen, of the schooner ' Epes 

 Tarr.' This specimen is not in very good condition, having 

 been dried (probably after having been taken from the 

 stomach of some fish, though there is very little evidence of 

 digestion having begun) and the internal organs consequently 

 destroyed ; but it is still sufficient to throw considerable light 

 upon the structural peculiarities of the group to which it 

 belongs. 



* " The Stalk-eyed Crustaceans of the Atlantic Coast of North America 

 north of Cape Cod,'' Trans. Connecticut Acad. v. pp. 27-138 (1879). 



Ann. & Mag. N. Hist. Ser. 5. Vol. v. 19 



