BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 149 



On the supposed fish remains figured on plate 



4 of " The Silurian System." 



In Quart. Jour. Geol. Soc. London, vol. 9, 1853, p. 13. 



The author divides the genus Pterygotus into two subgenera: 1, Ptery- 

 gotus proper, in which the didactyle claws are very thick and armed with 

 powerful teeth. 2, Leptocheles McCoy, in which the pincers are very 

 slender and unarmed. He refers Onch-as murchisoni to Leptocheles murch- 

 isoni. 



A synppsis of the classification of the British 



Palaeozoic rocks, by Adam Sedgwick; with a systematic 

 description of the British Palaeozoic fossils in the Geo- 

 logical Museum of Cambridge, by Frederick McCoy, 

 with figures of the new and imperfectly known species. 

 London and Cambridge, 1855, 25 pis. Pt. 2, Palaeon- 

 tology. 



This work was published in three parts. 



Fasciculus 1. Kadiata and Articulata. London, 1851. 



Beyrichia klodeni McCoy, B. complicata Salt., B. strangulata Salt. 

 Ceratiocaris ellipticus McCoy, C. inornatus n. sp., C. solenoides McCoy, C. ? 

 umbonatusS&lt. Trinodus agnostiformis McCoy, T. tardus ? Barr. Diplor- 

 hina triplicata H. & C. Harpidella megalopsM.cGoy. Trinucleus caractaci 

 Murch., T. gibbifrons McCoy, T. latus Portl., T. ? radiatus Murch., Tre- 

 taspis fimbriatus Murch., T. seticornis His. T. latus McCoy. Ampyx nudus 

 Murch. Ogygia buchi Brong, 0. radians McCoy. Barrandia cordia McCoy. 

 Lichas propinqua? Barr. Acanthopyge angilica Beyr. Trochurus nodulosus 

 Salt. Acidaspis brightii Murch. Staurocephalus murchisoni Barr. Cerauru* 

 clavifrons Dalm., C. octolobatus McCoy, C. loilliamsii McCoy. Eccoptochile 

 sedgvncki McCoy. Zethus atractopyge McCoy, Z. sexcostatus Salt., Z. 

 variolaris'Srong. Harpes parvulus, pis. 1, 2. Encrivurus punctatus Briinn. 

 Phacops alifrons Salt., P. downingice Murch. Odontochile caudata Briinn, 

 O. longicaudata Murch., 0. obtusi-caudata Salt., O. truncata-caudata Portl. 

 Portloclcia ? apiculata Salt., P. stokesii M. Edw. Chasmops odini / Eichw. 

 Calymene baylei Barr., C. blumenbachii Brong., C. brevicapitata Portl., C. 

 sub-diademiata McCoy, C. parvifrons Salt., C'. tuberculosa Salt. Homalon- 

 otus bisulcatus Salt., H. knightii Konig., H. rudis Salt. Isotelus affinis 

 McCoy, /. ( Basilicus ?) laticostatus Green, /. ( Basilicus) powisii Murch., 

 /. (Basilicus) tyrannus Murch. Illanus davisii Salt., /. latus McCoy, 

 /. rosenbergi Eichw. Dysplanus centrotus Dalm. Forbesia latifrons McCoy, 

 F. stokesii Murch. Eurypterus cephalaspis Salt. Pterygotus lepto-dactylus 

 McCoy. Portlockia granulata Miinst., P. latifrons Bronn. Trimeroceph- 

 alus loBvis Miinst. Bronteus alutaceus Goldf. Dithyrocaris scouleri and 

 D. later alis n. sp. Grijfithides meso-tuberculatus McCoy. Phillipsia gem- 

 mulifera Phill., P.jonesii Portl., P. wminifera Phill. 



