174 



and varices, but having the nuclear shell smaller, the test less 

 heavy, the varices nearly vertical to the surface of the whorl, in- 

 stead of reflected, which makes them appear sparser, tho' really 

 the same number occur on the whorl; varices are narrower, peri- 

 stome less heavy and wide. Long. 3.25, max. diam. 1.6 mm." — 

 Dall, Nautilus 20:127. 



Type localiy: — Monterey bay, Cal., in 12 fms. (S. S. Berry). 



2540 Scala (Cirostrema) Montereyensis 



"Shell small (probably not full grown), the nucleus lost but 

 with 5 subsequent rapidly increasing whorls; shell substance in 

 2 layers, inner translucent white, solid, outer opaque, frothy, po- 

 rous, with numerous puncticulations arranged in harmony with 

 the incremental lines, except on the basal disk where they form 

 spiral lines; varices low, solid, with a spongy surface, 9; basal 

 disk conspicuous, slightly concave; bordered by a conspicuous 

 cord; aperture gibbous, patulous near the imperforate axis. Long. 

 2.5, diam. 1.5 mm." — Dall, 1. c. 128. 



Type locality: — off Del Monte, Monterey bay, Cal., in 25 fms. 

 (S. S. Berry). 



2541 Stearns, R. E. C. S. 



Fossil mollusca from the John Day and Mascall beds of Ore- 

 gon, Univ of Cal, Geol pub b 5:67-70. New species are Epiph- 

 ragmophora dubiosa, Pyramidula Lecontei and Lymnsea maxima. 

 o 



2542 Cockerell, T. D. A. 



Fossil mollusca of Florissant, Colo. Amer Mus Nat Hist b 22: 

 1906. New species are Omphalina laminarum, Planorbis floris- 

 santensis, Lymnsea Sieverti and Scudderi, and Sphaerium floris- 

 santense. Proposes also Columna haydeniana as a new name for 

 Bulimus teres M. & H. (not Oliver). 



o 



2543 Pilsbry, H. A. and J. H. Ferriss: 



Notes on some New Mexican Ashmunellas. Nautilus 20:133-4. 

 Notes on forms No. 2544-2548. 



2544 Ashnuuiella rhyssa townsendi 

 Based on No. 2483. 



2545 Ashmunella rhyssa 



2546 Variety hyporhyssa 

 Based on No. 2022. 



2547 Variety miorhyssa 

 Based on No. 1962. 



2548 Variety edentata Ckll. 



2549 Stearns, R. E. C. 



Abalones and the earthquake. Nautilus 20:135. 



2550 Epiph. (Micrarionta) Hutsoni 



Clapp, Nautilus 20:136. About 8 miles from Quartzsite, 

 Yuma Co., Arizona (Geo. S. Hutson). Pilsbry, Nautilus 20:138, 

 "on the soft anatomy." 



2551 Bifid aria agna 



Pilsbry & Vanatta, Nautilus 20:141. Trinidad, Colo. 



2552 Mitra Fultoni 

 West coast of Mexico. 



2553 Mitra Idse Melville. 



Synonymy: — Mitra maura, as to Calif ornian literature; that 

 of Swains is said to be Peruvian. 



2554 Mitra orientalis Gray. 



These shells are discussed and figured by Mrs. M. Burton 

 Williamson, in Wash biol soc pr 19: — (1906). 



