88 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I48 



the two available references dealing with the genus Camarophorinella 

 and its type species (see synonymy). Licharev (1936, p. 63) an- 

 nounced his intention to describe the species fully in the fourth part of 

 his monograph of the Permian brachiopods of the North Caucasus, but 

 he made no further reference to the species until publication of the 

 "Osnovi" in 1960. (Since the above was written, specimens were sent 

 to the U.S. National Museum by Licharev. They agree with the above 

 description from the literature. Broken beaks reveal spondylium and 

 camarophorium, confirming placement in the Psilocamarinae. ) 



If species of Camarophorinella vary as species of other genera of the 

 Stenoscismatacea, then specific characters probably are in the con- 

 vexity of the valves, differences in shell outline, height of the fold, and 

 number and place of origin of costae. Internal features probably re- 

 main relatively invariable within the genus (see Licharev, 1936, text- 

 % 5). 



Genus CYROLEXIS Grant n. gen. 



(Kyro, Gr., attain; lexis, Gr., lot, destiny) 



Shell thick, strongly biconvex, ellipsoidal ; outline subtrigonal to sub- 

 elliptical, normally somewhat elongate, greatest width anterior to mid- 

 length ; anterior commissure uniplicate, fold high, flat-crested, oc- 

 cupying about one-third shell width, forming only short and low 

 elevation of brachial valve at extreme anterior ; sulcus shallow, broad, 

 beginning far anterior, primarily expressed as tongue extending into 

 fold at anterior commissure ; valves butting, meeting at slightly obtuse 

 angle at anterior and anterior sides, overlapping strongly on postero- 

 lateral slopes, nowhere extended to form stolidium; costae weak to 

 moderately strong, present on fold and flanks, beginning several milli- 

 meters anterior to beaks, crests rounded at origin, sharper toward 

 anterior; growth lines fine, closely spaced; growth laminae only 

 slightly stronger, widely and irregularly spaced, other concentric or 

 radial ornamentation absent. 



Pedicle valve moderately to strongly convex, slightly swollen in 

 umbonal region ; beak short, strongly curved, normally erect or slightly 

 recurved, pressed rather closely onto brachial umbo ; beak ridges blunt 

 but distinct, outlining large flat posterolateral surfaces for overlap by 

 brachial valve ; delthyrium normally filled by brachial umbo, deltidial 

 plates apparently absent. 



Brachial valve somewhat more strongly convex, umbonal region 

 swollen ; beak short, blunt, normally covered by pedicle beak ; postero- 

 lateral edges of valve very thin, overlapping broad smooth areas of 

 pedicle valve. 



Pedicle valve interior with one small hinge tooth at each side of 



