126 SAN DIEGO SOCIETY OF NATURAL HISTORY 



WALCOTT (Charles P.) — Continued 



A. smithi, A. sf<t'ciosa I.orenz (described by Lorenz under the genus Anoinocare). 

 Anomocarella subriigosa Wale. (Piychoparia (Liostracus) subrugosa Wale, 1906). 



Anomocarella talian Wale, A. temenus Wale, A. tcncs Wale. (Ptychopnria tenes 

 Wale., 1905), //. thrnso Wale., A. loxes, Wale., A. tiitia, A. iindata Wale. 



The last five species were described by Walcott in 1905, and six under the genus 

 Ptychoparia. 



Genus Cossia \^'^alcott, 1911. Genotype C. stiperba Walc. 



The author refers to his type for the generic description, and includes five species 

 under the genus. 



Coosia hianos, C. carmc, C. dauuus, C. drcrlus. 



All previously described in 1905 under Anomocare, except Coosia carmc, which was 

 originally included under Anomocarella. 



Coosia rohusta and C superha Walcott. 



Genus Dolichometopus Angelin, 1S54. fienotype D. svccictis Ang. 



\\'alcott places Ainphoton Lorenz, 1906, as a syn. 



The author describes five species from China. 



Dolichometopus alccste Walc, I). Jcois Walc, syn. Bathyriscus asiaticus Lorenz and 

 Am photon stein manni Lorenz, D. dcrccto W^alc, D. dircc Walc, D. hyric Walc. 



Crenus Hysterolenus Moberg, 1898. 



The author only includes one species, Hysterolenus ? sp. undt. 



Genus Bathyuriscus Meek, 1873. 



Bathyuriscus manchuriensis Walc. 



Genus Asaphiscus Meek, 1873. 



Asaphiscus idding: Walc. 



Genus Illaenurus Hall, 1863. 



lUaenurus canens Walc, /. ceres, I. dictys Walc. 



Ostracoda: 



Genus Aluta Matthew. 



The author includes under this genus six species previously described under the 

 genus Bradoria. 



Aluta bergeroni Walc, A. crryo Walc, A. eris Walc, A. fragilis Walc, A. sterope 

 Walc, A. ixoodi Walc. 



Merostoma. 



Genus Amiella Walcott, 1911. 



Amiella yunnanensis Mansuy (MSS.). 



Cambrian Geology and 1 Palaeontology — 2, No. VA. Dikelo- 



cephaliis and other genera of the Dikelocephalinae. 



Smithsonian Misc. Collections, vol. 57, No. 13, 1914. 



The author includes under tlie family Dikelocephalina Beecher, 1897, the following 

 genera : 



Dikelocephalus Owen, 1852. 



Referring to the restricted genus the following species: 



Dikelocephalus minnesotensis Owen, and a variation D. dalyi n. sp. The palpebral 

 lobe of D. dalyi is shorter than in typical Dikelocephalus, in this respect, resembling 

 some species of Anomocare, but not the typical species Anomocare laeve Angelin, D. 

 Texanus n. sp. 



Dikelocephalus hartti Walcott. This is the Conoccplialutcs liartii Walc, 1879. 



D. limbatus Hall, D. tribulis Walc, 191.?, and D. Tanhornei n. sp. The cranidium is 

 much like the genotype, but it has a shorter glabella and Avider fixed cheeks. 



2. Conokephalina Brogger, 1886, genotjpe C. ornatiis Brogger. 



