32 



STALK-EYED CRUSTACEA. 



Family CALAPPlDiE. 



PLATYMERA M. Edw. 



Hist. Nat. Crust., II. 107, 18;i7. 



Platymera gaudichaudii M. Edw. 



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



Station 3387. 127 fathoms. 2 males. 



Both spechneiiB 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-kiteral 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. 



Pla^mera gamlidiaudli 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 ornicnds ^\ recently described by her. 

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

 chaudiL 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 

 mio'ht well arise from a slight inaccuracy of the draughtsman. The types 

 of P. californicnsis were dredged off the coast of California, lat. 32° 22! 31 



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



ff 



N. 



Family MATCTIDiE. 



OSACHILA Stimps. 



Bull. Mus. Comp. Zoo!., 11. 154, 1870- 



OsacMla lata Fax. 



Plate F., Figs. 2, 2% 2\ 



Ball. Mus. Comp. ZooL. 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 I'Amcr. Mcrid., Crust,., Plate XITT. 

 t Proc. U.S. Nat. Mus., XVI. 253, 1893. 



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