BIBLIOGRAPHY OF PAL/EOZOIC CRUSTACEA. 193 



The description of all the species, \yith the exception of Ampyx nudus, 

 was made by J. W. Salter. 



Phacops caudatus Briinn. var. (a) vulgaris, var. (b) longicaudatus. 



Other British species of Phacops of the section Dalmania. 



Phacops ■i'^.'i P. obtusi-caudatus Salt., P. truncato-caudatus Portl., var. 

 (b) affinis Salt. 



Subgenera: 1, Portlockia. 2, Phacops. 3, Dalmania. 4, Cryphams 

 Green ( Pleuracanthus Milue-Edw.) 



Illcenus davisii Salt., /. bowmanni Salt., I. portlocki Salt., /. perovalis 

 Murch., /. ocularis n. sp., /. murchisoni Salt., /. barriensis (subgenus 

 Bumastus). Asaphus tyrannus Miwch. Ogygia buchiiHrong., . jwrtlockii 

 Salt. Calymene tuberculosa Salt. Olenus micrurus Salt. Amp)yx nudus 

 (Murch.) Forbes, A. tumidus Forbes, also mentions Ampyx austini Portl., 

 A. mammillatus Sars., A. sarsii Portl., A. rostratus Sars., A. parvulus 

 Forbes, A. bruchieri Boll., A . portlockii Barr. 



Description of Pterygohis prohlematicus Agass. 



In Quart. Jour. Geol. Soc. London, vol. 8, 1852, p. 386, pi. 21. 



Notes on the Trilobites. 



Appendix C to an article by Seiior Carlos Ribeiro on the Carboniferous 

 and Silurian formations of the neighborhood of Bussaco, in Portugal. 



In Quart. Jour. Geol. Soc. London, vol. 9, 1853, p. 158, pi. 7. 



Calymene tristani Brong., C. arago Eouault. Asaphus guettardi Brong., 

 A. desmaresti 'Bxong. Asaphus S'p.^ Illai7ius gigaiiieus'Biivm. Placoparia 

 zippei Boeck V Trinucleus pioiigerardi Eouault. Ogygia ? glabrata n. sp. 



On Arctic Silurian fossils. 



In Quart. Jour. Geol. Soc. London, vol. 9, 853, p. 312. 

 Encrinurus Ictvis Ang.? Proetus sp.? Leperditia balthica His. 



Figures and descriptions illustrative of British 



organic remains. Decade 7. 



In Mem. Geol. Survey United Kingdom, London, 1853, 10 pis. 



The genera are arranged in the following order: Phacops doivnirigbTi 

 Murch. Sec. Acaste: 1, P. apiculatus Salt. 2, P. brongniarti Portl. 

 3, P. dalmani Portl. 4, P.jamesi Portl. 5, P. ali/rons Salt. 6, P. jukesii 

 n. sp. 7, P. conophthalm,us Boeck. Sec. Odontochile: P. mucronatus 

 Brong., P. amphora n. sp. Cheirurus bimucronatus Murch. Sec. Grata- 

 loccphalus: 1, C. ar ticu latus Mnnat. Sec. Cheirurus 'pro'per: 2, C. speciosus 

 Dalm. 3, C. gelasinosus Portl. 4, C. cancurus n. sp. 5, C. octolobatus 

 McCoy. Sec. Actinopeltis: 6, C. clavifrons Dalm. 



Sphcerexochus mirus Beyr. 1, Encrinurus sexicostatus Salt. 2, E. punc- 

 to<MS Briinn. ii, E. variolar is Brong. 4, E. multisegyneniatus Fortl. Cyphaspis 

 megalops McCoy, C. pygmceus u. sp. Acidaspis jamesii Salt., A. bispinosus 

 McCoy. 3, ^.sp. ? 4, A.biserialisB.. B'p. 5, ^4.sp.? 6, A. car actaci n. si^., 

 A. coronatus n. sp. (A. brightii, Mem. Geol. Sur., pi. 9, figs. 8-9). 

 13 



