MUSEUM OF COMPARATIVE ZOOLOGY. 55 



Caridion Gordoni Goes. 



Hippolyte Gordoni Bate, Nat. Hist. Review, V., Proc, p. 51, figs., 1858. [No spe- 

 cific name is given in the article, though the species is said to be named after 

 its discoverer, the Rev. G. Gordon, but Hippolyte Gordooii is given in the 

 " Index to the Proceedings," p. iv.] 



Dcrryphnrus Gordoni NoRMAN, Ann. Mag. Nat. Hist., 3d Series, VIII. p. 277, 

 PI. XIII. figs. 6, 7, 1861. [The generic name preoccupied.] 



Caridion Gordoni GoEs, Ofversigt Vetenskaps-Akad. Forhandlingar, Stockholm, 

 1863, p. 170 (10). 



Station 311, N. Lat. 39° 59' 30", W. Long. 70° 12', 143 fathoms, sand ; two 

 specimens, male and female. 



Bythocaris, sp. indet. 



A few specimens from Station 314, N. Lat. 32° 24', W. Long. 78° 44', 142 

 fathoms ; and Station 327, N. Lat. 34° 0' 30", W. Lon. 76" 10' 30", 178 

 fathoms. 



The species is the same as the one I have referred to as taken off Block 

 Island by the U. S. Fish Commission (Ppoc. National Mus., Washington, III. 

 p. 437, 1881). It is apparently closely allied to B. Payeri G. O. Sars (Archiv 

 Mathem. Naturvid. Kristiania, II. p. 340, 1877, Hippolyte Payeri Heller), but 

 the specimens are all much smaller then the one described by Heller, none of 

 them being over 30 mm. in length, and probably belong to a distinct species. 



Anchistia tenella, sp. nov. 



Plate IX. Figs. 1 - 1". 



This species is represented by a single specimen, an egg-carrj'ing female. 

 The integument is very thin and soft, so that it is difficult to make out accu- 

 rately the proportions of the carapax, which is apparently slightly compressed 

 laterally. The rostrum is slender, falls slightly short of the tips of the anten- 

 nal scales, is fully three fourths as long as the rest of the carapax along the 

 dorsal line ; the dorsal crest extends back a short distance upon the carapax, is 

 directed slightly downward through its whole length, and is armed with nine 

 teeth, crowded posteriorly but more widely separated anteriorly, and of which 

 three are back of the orbit and the small anterior one near the acute tip ; the 

 lower edge is armed with three teeth. The anterior margin projects in an 

 acute angle below the orbit, and there are well-developed anteimal and hepatic 

 spines. Just back of the dorsal crest there is a slight notch in the dorsum with 

 a distinct but short transverse sulcus turned forward either side. 



The eyes ate small, black, and fall considerably short of the middle of the 

 rostrum. The peduncle of the antennula (PL IX. fig. 1') reaches to the tip of 



