234 



KEPORT 1886. 



peculiar appearances on an internal cast of a Carboniferous Phyllopodous 

 carapace from Illinois, as traces of four pairs of lamellate limbs (thoracic 

 feet), probably 'the homologues of the exopodites of Nehalia.' He has 

 defined the genus and species as Cryptozoe prohlematica (' American 

 Naturalist,' Extra, Feb. 1886, p. 156 ; and ' Proceed. Americ. Philosoph. 

 Soc' vol. xxiii. No. 123, pp. 380-383). 



27. In a Geological Report, Assembly Document, No. 161, 1885 

 (or 1886), Mr. J. M. Clarke has defined the localities and geological succes- 

 sion in Ontario County and New Toik, where the Phyllopods which he 

 previously described (see ' Second Report,' 1884, pp. 80-86, and ' Third 

 Report,' p. 3) have occurred with or without Goniatites. 



28. A list of the British Palaeozoic Phyllocarida described in the 

 Third and Fourth Reports. 



