NO. 12 PERMIAN BRACHIOPODS FROM OREGON—COOPER 47 
The development of a rim seldom takes place in productoids except 
in the adult, 
This species differs from K. porrectus in other features beside the 
ornamentation as mentioned above. The sulcus originates near the 
beak and is broader than that of the Russian species. Kochiproductus 
transversus is a smaller and wider species than the two known Ameri- 
can species, K. peruviana (d’Orbigny) and K. victorioensis (R. E. 
King). 
KOCHIPRODUCTUS cf. K. PORRECTUS (Kutorga) 
Plate 4B, figure 7 
Productus porrectus Kutorca, Verhandl. Russ.-Kais. Min. Ges., St. Petersburg, 
1844, p. 96, pl. 10, fig. 3; TscHERNySCHEW, Mém. Com. Géol., St. Peters- 
burg, vol. 16, No. 2, pp. 301, 634, pl. 55, fig. 1, pl. 56, fig. 4, pl. 62, fig. 2; 
p. 637, fig. 7, 1902. 
The specimen placed under this heading is a large productoid, the 
largest occurring in the fauna under consideration and one of the 
largest known in this country. Only part of both valves are preserved 
and these have become somewhat displaced so that the beak is shoved 
some distance over the hinge line. The beak is narrow and the umbo 
strongly swollen. A shallow sulcus originates on the umbo but its 
anterior extent and depth cannot be ascertained. The brachial valve 
is gently concave but shows evidence of the origin of a low fold about 
18 mm. anterior to the beak. The surface is costellate and reticulate. 
The costellae are narrowly rounded and separated by spaces wider 
than the costellae. The reticulation is produced by narrow, concentric 
rugae. Where an undulation and costella meet, a node is produced 
which probably was the seat of origin of a short spine. 
Detailed measurements are not possible because the specimen is so 
incomplete but its length and width were in excess of 70 mm. The 
size and ornamentation of the Oregon specimen are similar to those 
of a specimen figured by Tschernyschew (1902, pl. 55, figs. 1a, 1b.) 
Type.—Figured specimen, U.S.N.M. 125333. 
Localities —614; S87, S106; U.O. 2202-2. 
WAAGENOCONCHA PARVISPINOSA Cooper, new species 
Plate 4C, figures 8-12 
Shell small for the genus, wider than long, but somewhat rectangu- 
lar in outline; sides rounded; front margin subtruncated. Surface 
covered by a mat of fine spines arranged quincuncially, about 9 to 
16 in 4 square mm. near the front. 
