96 BULLETIN 138, UNITED STATES NATIONAL MUSEUM 



RANINOIDES EUGENENSIS, new species 

 Plate 24, fig. 4 



Description. — Carapace slightly convex from side to side, almost 

 flat longitudinally on the median line. Surface coarsely punctate, 

 similarly to R. washhurnei^ surface layer incomplete. The anterior 

 spines are incomplete, but the two principal orbital spines are more 

 advanced than the rostrum. Rostrum subacute, flanked on either 

 side by a very short spine; the narrow sinuses appear to be U-shaped, 

 the intervening spine oblong, blunt, the outer spine broad but with 

 details missing. The carapace is slightly constricted for a very 

 short space behind the antero-lateral spines, so that the widest point 

 is not far behind those spines. The postero-lateral margin though 

 slightly convex is nearly straight. 



Measurements. — Length of carapace of holotype, approximately 

 24.5 mm.; width between tips of antero-lateral spines 17.7 mm.; 

 greatest width behind the spines 14.8 mm.; fronto-orbital width 

 10 mm. 



Occurrence. — Oregon; near Eugene; upper Oligocene series; one 

 carapace, holotype, and impression and portions of two other cara- 

 paces, one of which may be considered a paratype. Holotype in 

 University of Oregon. 



Oregon: Western part, one-fourth mile west of Springfield Junc- 

 tion on Southern Pacific Railroad, Lane County; Oligocene series. 

 One carapace, incomplete and corroded but determinable by the 

 nearly straight postero-lateral margin and the coarsely punctate 

 surface, which is continued on at least the anterior part of the ventral 

 surface of the carapace. The specimen is considerably larger than 

 the type, measuring 22 mm. in greatest width behind the spines; 

 all spines are lacking. Cat. No. 353338, U.S.N.M. 



Relation. — In its surface and antero-lateral spines this species 

 resembles R. washburnei, but differs notably in its flatter and nar- 

 rower carapace, more rapidly diminishing posteriorly. 



KANINOroES FULGroUS, new species 



Plate 23, fig. 6 



Description. — Carapace very convex from side to side, rising 

 steeply from the lateral margins in their middle third ; gastric region 

 a little convex longitudinally, carapace posteriorly flat. The punctae 

 of the carapace are visible to the naked eye, are widely separated on 

 the greater part of the carapace, but numerous and more or less 

 crowded on the anterior and antero-lateral regions; the interspaces 

 are filled wnth fine, scabrous granules which are most abundant and 

 prominent where the punctae are most numerous; posterior end of 

 carapace smooth, devoid of granules and punctae. Behind the outer 



