130 SAN DIEGO SOCIETY OP NATURAL HISTORY 



WALCOTT (Charles P.)— Continued 



Ogygopsis Klotzi (Rominger). 



Orria new genus, with Orria elegans Walcott, as the genotype. Both Orria and 

 Ogjgopsis suggest a stage of development between Bathyuriscus and Ogygiocaris. The 

 form is Og\'gopsis-like, but differs in tiiat the cephalon is smaller in proportion to the 

 thorax and the pygidium; fixed cheeks nearly absent between palpebral lobes and gla- 

 bella; palpebral lobes large and close to glabella; postero-lateral limbs long and nar- 

 row antro-lateral limbs; only a narrow space between the glabella and facial sutures; 

 pleural grooves of thorax segments broad and straight, instead of narrow and diagonal. 



Asaphiscus the author refers to the genus. 



Asaphisius calcnus Wale, ./. camma ^^'alc., A.ftapcUa W^alc, A. f granulalus 

 Wale, A. Iddingsi Wale, A. f minor Wale, A. ? unispinus Wale, .7. Jf'liecleri Meek, 

 the genotype; also A. agatho Wale, A ? anax'ts Wale, A. calanus Wale, A. f Juris 

 Wale, with three sp. undt., and ./. f florus nov. 



Blainia new subgenus. 



The species referred to Blainia ha\e nine thoracic segments and from six to eleven 

 distinct anchylosed segments in the pygidium. (jenotype A saphiscus (Blninin) grc- 

 garius Wale 



Dr. Waicott includes four new species under the subgenus: 



Asaphiscus (Blainia) elongatus, A. (B.) glabra, A. (B.) paula. 



Blountia new genus. 



The author refers seven species to this genus, (jenotype Blountia ininula W^ale, 

 Blountia ? alemnn Wale, B. alcthcs Wale, B. a'.rxas W^Xc, B. aniagc Wale, B. 

 andreas Wale, B. anser Wale, and B. mirnula from the l-pper Cambrian. 



Maryvillia new genus. Genotype M. Arion and M. Ariston nov. 



The pygidia associated with the cranidae of these species are elongate, with about 

 fourteen segments, which suggest transition from Blountia to Tsinania, as represented 

 by such species as Tsinania canens Wale,' etc. 



Family Olenidae: Marjumia new genus. Genotype M. typa Wale 



This genus appears to unite characters found in several genera. The cephalon is 

 essentially that of Asaphicus, the thorax that of Pt^xhoparia, and the pygidium that of 

 Peltura scarahoides and Parabolina megalops. 



In addition to the type the author describes Marjumia rallas nov. Lisania Wale 

 genotype AnomocarcUa Intra Wale and L. f hreinloba nov. 



lUaenurus quadratus Hall. 



Mesonacis Gilbcrti Meek. 



Proparia, Family Eodiscidae: Pageti new genus. Genotype P. hootes Wale The 

 new genus was proposed for the forms of F.odiscidae, in which the eye, the free cheeks 

 and facial sutures are developed. Two species described Pagctia bootes and P. clytia. 



Cainbrian Geology and Fala'ontology IV, No. 2. The Al- 



bertella fauna in British Colnml)ia and ^lontana. 



Smithsonian Misc. Coll., vol. 67, No. 2, 1917, May 9, 1917. 



The author describes from this formation the following Crustacae: 



Agraulus stator Wale 



Plyclioparia candance nov. 



The elongated body and small pygidimn suggest Agraulos s/alor, but the cranidium 

 is that of Ptychoparia, and there are 16 thorax segments, while A. stalor has 22, a 

 middle Cambrian form. 



Ptychoparia ? charax nov. 



This species is probably a subgenus with a Ptychoparia-like cranidia, with a broad 

 concave frontal border and rim, that will undoubtedly be placed in a subgenus. 



