32 STALK-EYED CRUSTACEA. 



Family CALAPPID^. 



PLATYMERA M. Edw. 



Hist. Nut. Crust., 11. 107, 1S37. 



Platymera gaudichaudii M. Edw. 



Hist. Nat. Crust., II. 108, 1837. 



Station 3.387. 127 fathoms. 2 males. 



Both specimens are adult, the larger measuring 58.5 X 105 mm. 

 (including the lateral spines). The more prominent parts of the carapace 

 rise into small tubercles here and there, to the number of about twenty-five. 

 The position of some of these tubercles appears to be indicated by reddish 

 spots in Milne Edwards and Lucas's figure of this species.* In the " Alba- 

 tross" specimens the teeth of the antero-lateral margin are sharper and 

 smaller than in the figure, the meri of the ambulatory appendages narrower, 

 and the dactyli are not expanded near their tips. 



Pktti/mera (jaudklmndii has hitherto been known as a Chilean species. 



Through the kindness of Miss Rathbun I have had an opportunity to 

 examine specimens of Platymera calif ornknm,'\ recently described by her. 

 They are identical with the specimens which I have referred to P. gaudi- 

 clumdli. I do not think that the very slight discrepancies between these 

 specimens and the figures in D'Orbigny's Atlas warrant their separation, 

 especially as neither Miss Rathbun nor I have had specimens from Chile 

 for comparison. The differences between our specimens and the figures 

 might well arise from a slight inaccuracy of the draughtsman. The types 

 of P. californiensis were dredged off the coast of California, lat. 32° 22' 30" N. 

 to 37° 43' 20" N., in 26-204 fatlioms. 



F.\MiLY MATUTID.^. 



OSACHILA Stimps. 

 Bull. Mus. Comp. Zuol., II. 151, 1S70. 



Osachila lata Fax. 



Plate v., Figs. 2, 2^, 2K 



Bull. Mus. Comp. Zo61„ XXIV. 159, 1893. 



Carapace expanded laterally ; length : breadth = 3:4; three low obtuse 

 protuberances on the gastric region, one on the cardiac, three or four on the 



• D'Orbigny's Voy. dans TAmer. Merid., Crust., Plate XIII. 

 + Proc. U. S. Nat. Mu3., XVI. 253, 1893. 



