130 SAN DIEGO SOCIETY OF NATURAL HISTORY 
WALCOTT (Charles D.)—Continued 
Ogygopsis Klotzi (Rominger). ‘ 
Orria new genus, with Orria elegans Walcott, as the genotype. Both Orria and 
Ogygopsis suggest a stage of development between Bathyuriscus and Ogygiocaris. The 
form is Ogygopsis-like, but differs in that 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. 
Asaphiscus calenus Wale. A. camma Walc., A. 2 capella Wale. A. ? granulatus 
Walc., 4. Iddingsi Walc., A. 2 minor Walc., 4.2 unispinus Walc., 4. Wheeleri Meek, 
the genotype; also 4. agatho Walc., 4 ? anaxis Walc., A. calanus Walc., A. ? duris 
Walc., with three sp. undt., and 4. ? florus nov. 
Blainia new subgenus. 
The species referred to Blainia have nine thoracic segments and from six to eleven 
distinct anchylosed segments in the pygidium. Genotype Asaphiscus (Blainia) gre- 
garius Wale. 
Dr. Walcott 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. Genotype Blountia minula Walc., 
Blountia 2? alemon Walc., B. alethes Walc., B. alexas Walc., B. amage Walc., B. 
andreas Walc., B. anser Walc., and B. mimula from the Upper 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 Walc., ete. 
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 Ptychoparia, and the pygidium that of 
Peltura scaraboides and Parabolina megalops. 
In addition to the type the author describes Marjumia callas noy. Lisania Wale. 
genotype Anomocarella bura Wale. and L. ? breviloba nov. 
Illaenurus quadratus Hall. 
Mesonacis Gilberti Meek. 
Proparia, Family Eodiscidae: Pageti new genus. Genotype P. bootes Wale. The 
new genus was proposed for the forms of Eodiscidae, in which the eye, the free cheeks 
and facial sutures are developed. ‘Two species described Pagetia bootes and P. clytia. 
Cambrian Geology and Paleontology IV, No. 2. The Al- 
bertella fauna in British Columbia and Montana. 
Smithsonian Misc. Coll., vol. 67, No. 2, 1917, May 9, 1917. 
The author describes from this formation the following Crustacae: 
Agraulus stator Walc. 
Ptychoparia candance nov. 
The elongated body and small pygidium suggest 4 graulos stator, but the cranidium 
is that of Ptychoparia, and there are 16 thorax segments, while 4. stator 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. 
