196 CALIFORNIA ACADEMY OF SCIENCES. 



Subgenus 1, Trlmerocephaltis McCoy. Phacops ( Trlmerocephalus) Icevis 

 Miinst., P. cryphthophthalmus Emm. 



Subgenus 2, Phacops Emm. P. (Phacops) granulatus Mtinst., P. 

 (Phacops) latifrons Bronn, also var. P. (Phacops) stokesii Milne-Edw., P. 

 (Phacops) nudus n. sp., P. (Phacops) mushini n. sp. 



Subgenus 3, Acaste Goldf. P. (Acaste) downingim Murch., also varia- 

 tions (a) vulgaris, (h) macrops, (c) inflatus, (d) spinosus. Variety or sub- 

 species P. constrictus, P. (Acaste) apiculatus Salt., P. (Acaste) minus n. 

 sp., P. (Acaste) incertus Deslong., P. (Acaste) jamesii Portl., P. (Acaste) 

 ali/rons Salt., P. (Acaste) brongniarti Portl., also var. dalmani. 



Subgenus 4, Chasmops McCoy . P. (Chasmops?) jukesii Salt., P. (Chas- 

 mops) macroura Sjogr., P. (Chasmops) conojihthalmus Boeck? P. (Chas- 

 mops) amphora Salter, P. (Chasmops) trtincato-caudatus Portl., P. (Chas- 

 mops) bailyi n. sp. 



Subgenus 5, Odontochile Cord. P. (Odontochile) obtusicaudatus Salt., 

 P. (Odontochile) mucronatus Brong., P. (Odontochile) imbricatulus Aug., 

 P. (Odontochile) caudatusBiiinu, y&t.(a) vulgaris, (b ) tuber culato-caudalus 

 Murch., (c) nexilis Salt., (d) acideatus Salt., P. (Odontochile) longicaudatus 

 Mtirch. var. (a) armiger, (b) grindrodianus, P. loeaveri Salt. 



Subgenus 6, Cryphceus Green. P. (Cryphaeus) jntnctatus Stein. 



Fam. Cheirurus subgenus Crotalocephalus Salt. Cheirurus (Crotalo- 

 cephalus) articulatus Miinst.? (7. bimucronatus Murch. var. (a) bimucro- 

 natus, (b) centralis. 



Subgenus Cheirurus Beyr. C. (Cheirurus) gelasinosus Portl., C. (Cheiru- 

 rus) cancrurus Salt. 



Subgenus Eccoptochile Cord. C. ( Eccoptochile ) sedgwicki McCoj', C. 

 ( Eccoptochile) frederici n. sp. 



Subgenus Actinopeltis Cord., C. (Actinopeltis) juvenis Salt., C. (Actino- 

 peltis) octolobatus McCoy. 



Sphcerexochus minis BejT., S. ? boops n. sp. Amphion pseudo-articulatus 

 Portl., A. benevolens n. sp., A. j^auper n. sp. 



On some fossil Crustacea from the Coal Meas- 

 ures and Devonian rocks of New Brunswick, Nova 

 Scotia, and Cape Breton. 



In London, Edinb., Dublin Philos. Mag., 4th series, vol.24, 1862. p. 166. 



A monograph of British Trilobites. Pt. 2. 



Pp. 81-128, pis. 7-19. 



In PalaBont. Soc. London, vol. 17, 1863. 



Staurocephalus murchisoni Barr., S. globiceps Portl., SJ unicus Wyv. 

 Thom. Deiphon forbesi Barr. Calymene tuberculosa Salt., C. blumen- 

 bachii Brong., also vars. allportiana and caractaci. Subspecies 1, Caly- 

 mene senaria Conrad. 2, C. cam,brensis Salt. Calymene tristani Brong., 

 C duplicata Murch., C.parvifrons Salt, also var. murchisoni, CJ daviesii 

 n. sp. 



