AN EXAMINATION OF TYPES OF SOME RECENTLY 

 DESCRIBED CRUSTACEA. 



BY T. HALE STREETS, M. D., AND J. S. KINGSLET. 



THE PEABODY ACADEMY OF SCIENCE having received 

 from Mr. W. N. Lockington, of Sail Francisco, some of 

 the types of the Crustacea described by him in the " Pro- 

 ceedings of the, California Academy of Sciences," we have 

 thought it best to place on record the results of our study 

 of the specimens, especially since many of his lie w genera 

 and species would be, without his labels, impossible to 

 identify. We have only "Author's extras," and so can- 

 not quote the volume and page, of his descriptions. 



Microphrys platysoma A. M. Edw. Milnia platysoma Stimpson, Annals 

 N. Y. Lyceum Nat. Hist., vii, p. 180. Pisoides? celatus Locking- 

 ton, Proc. Cal. Acad., July 17, 1876. 



Of this species we have two specimens. The two spines 

 on the branchial region are close together. 



Microphrys depressa Streets & Kingsley. Fisheria depressa Lockington, 

 1. c., July 17, 1876. 



This species differs from M. platysoma in having the 

 digits excavate at the extremity, in being more granulated, 

 in having tbe laminiforin process on the branchial region 

 somewhat imbricated. 'There is a spine between and be- 

 low the processes on the branchial and hepatic regions and 

 three spinous tubercles beneath the hepatic process, on the 

 infero'lateral portion. The posterior margin of the cara- 

 pax has a row of bead-like tubercles as in M . platysoma. 

 The laminiform processes on the propodal joints of the 



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