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PrvOFESSOR E. BAT LANKESTER. 





Fig. 1. — A. Youngest specimen of Procalistes Suhmii, gen. efc sp. nov. 

 Drawn by R. von Willemoes-Suhm from a living specimen. Magnified 25 

 diameters, a. The long "arms" or processes of the fore-foot. b. The six small 

 suclcer?, representing the cis'ht short processes of the fore-foot of a typical 

 Decapod, c. The elongated neck. d. The pedunculated eyes. f. The funnel 

 or siphon, g. The anal process seen through the transparent mantle, li. The 

 median posterior process of the body. I. The lateral fins attached to the 

 same. m. The buccal apparatus, n. The oto-cysts. o. The intestine. 



B. One of the suckers of the long arras, more highly magnified. C. A 

 portion of the lingual ribbon, more highly magnified. 



