180 



2667 Sonorella Lohrii 



Based on Helix Lohrii Gabb. 



2668 Variety lioderma Pilsbry. 



Near Moleje, Baja Cal. (Nautilus 18:59). 



2669 Sonorella Arizonensis 

 Based on Helix Arizonensis Dall. 



2670 Sonorella Rowelli 



Based on Helix Rowelli Newc. 



It seems to the writer that many of the "species" of Sonorella 

 are ill-advised; most of them, if we understand correctly, are 

 based on dead specimens, like Indioensis, which with Walcottiana 

 seem indistinguishable from each other, and are from adjacent 

 localities. My specimens of Coloradoensis seem later to have been 

 identified as Pisheri.and still later described as Baileyi var.Orcutti. 

 Descriptions are practically valueless to distinguish these forms, 

 and large series of good specimens will probably show nearer re- 

 lationship between them than authors cited seem to think. 



2671 Dall, W. H. 



A revision of the Solenomyacidse. Nautilus 22:1-2. 



2672 Solemya panamensis Dall. 

 Santa Barbara, Cal., to Panama. 



2673 Solemya valvulus Cpr. 



San Pedro, Cal., to Gulf of Cal. 



2674 Solemya Agassizii Dall. 



Tillamook bay, Oregon, to Azuja Point, Peru, in 1036-1800 

 fathoms. 



2675 Solemya ventricosa Conr. 



Oregon (Miocene). S: protexta Conr. perhaps the young. 



2676 Terebratula (Liothyris) sakhalinensis 



Dall, Nautilus 22:28. Okhotsk Sea, 64-100 fms. 



2677 Laqueus Morsei 



Dall, Nautilus 22:29 Japan Sea. 



2678 Trask, Dr. John B. 



Dr. R. E. C. Stearns, Science 21 Ag 1908, gave a sketch of this 

 pioneer in West America. Helix Traskii and others commemorate 

 his labors. 



2679 Valvata humeralis californica 



Pilsbry, Nautilus 22:82. Shell much more depressed, last 

 whorl descending less; whorls convex below the suture, not flat- 

 tened as is the typical form. Alt. 2.7, diam. 4 mm. Bear Lake, 

 San Bernardino Mts., Cal. (S. S. Berry). Hannibal, Nautilus 23: 

 105 treats this as typical, and gives the range of the species from 

 Wash.; Idaho; Utah; Ore.; Cal.; Mexico; N. M. 



2680 Epitonium (Acrilla) Atwoodi 



Dall, Nautilus 22:80. Miocene strata, Alaska. 



2681 Ammonitella Yatesi precursor 



Edson, Nautilus 24:132 gives the synonymy as follows: — 

 Planorbis lunatus Conr. — Gonostoma Yatesi Cp. — -Ammonitella 

 lunata. 



Type locality: — Bridge creek, Oregon (fossil). 



2682 Buell, Ira M.: 



Notes on fossil Californian Pleurotomidas, Nautilus 24:142. 



2683 Pholadomva Paciflca 



Dall, Nautilus 22:116. N. W. Pacific, in 107 fms. 



