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DiciiocKixus pisuM M. and W 763 



Fig. 10. Posterior side of the dorsal cup. (After Meek aud Wortben.) 



DicuocKixus STKIATUS 0. aud Sh 757 



11a. Posterior side of the dorsal cup. 

 lib. Side view of another spcciuieu. 



DicuocRiNus iKORNATus W. and Sp 770 



12«. Posterior view of a specimen with arms. 

 12ft. Another specimen. 



DicHOCEiNUS DELicATUs W. aud Sp 76G 



13. The tj'pe specimen. 



(All the specimens, except 7a, b and 10, are in the collection of Wachsmuth 

 and Springer.; 



