110 



1517 Haliotis calif orniensis Swainson. 



Nos. 1515-1517 are generally treated as synonyms of Cra- 

 cherodii. 



1518 Haliotis Califomiana Valenciennes. 

 Synonym of H: rufescens. 



1519 Haliotis ponderosa C. B. Adams. 

 Supposed to be rufescens. 



1520 Ariolimax columbianus straminea 



"Animal when extended about 6 inches long, with the mark- 

 ings of A: columbianus, of a uniform light straw color, a shade 

 lighter beneath the foot. Santa Cruz Island, Cal." — H. Hemphill, 

 Nautilus 4:120. 



1521 Carychiuni exiguuin occidentals 



"Somewhat larger than typical exiguum, distinctly conical, 

 not at all cylindrical, acute; outer lip expanded, thin, not at all 

 toothed. Portland, Oregon." — Pilsbry, Nautilus 4:109. 



1521 Pupa hordeacea Gabb. 



1522 Pupa hordeacella Pilsbry. 



Sterki, Nautilus 4:141, discusses these two species, occurring 

 in Arizona, New Mexico and Texas. 



1523 Cockerell, Theodore D. A.: 



The slugs of British Columbia, Nautilus 5:30. 

 Notes given on numbers 1524-1529. 



1524 Agriolimax cainpestris hyperboreus 



Comor, 140 miles north of Victoria (Taylor). 



1524a Agrioliniax Berendti Strebel. 



Cockerell considers Limax Hemphilli as a variety. 



1525 Prophysaon Andersoni Hemphilli 



British Columbia (Rev. J. H. Keen). 



1526 Variety pallidum Cockerell. 



"Paler, ochreous, the bands on mantle evanescent, reticula- 

 tion on body not dark, back not darker than sides, neck pale." — 

 Cockerell. 



British Columbia (Rev. J. H. Keen). The largest 46 mm. long 

 (in alcohol). 



1527 Ariolimax Columbianus Gould. 



Cockerell describes forma typicus as without black spots. 



1528 Forma maculatus Cockerell. 



Cockerell cites a specimen in alcohol 63 mm. long, tail well 

 keeled for 18 mm.; a large spot on mantle; sole with median area 

 smooth though wrinkled, lateral area rough; jaw dark, with 15 

 ribs. 



1529 Forma niger Cockerell. 



Entirely black, except the sole, which is rather olivaceous. 



