MUSEUM OF COMPARATIVE ZOOLOGY. 43 



The animal extends itself into a long cylindrical worm-like body, with ob- 

 tuse ends. Length when fully extended, (in nun. 

 The synonymy of this species is as follows : 



Arion Andersoni, J. G. Coop., formerly Prophysaon Hcmphilli, var., W. G. B., 



T. M. V. 

 Prophysaon Andersoni, J. G. C., in 



Ariolimax Columbianus, GOULD. 

 Ariolimax Californicus, J- G. COOP. 

 Ariolimax niger, J. G. COOP. 

 Ariolimax Hemphilli, W. G. B. 



\ 



Arioliraax Andersoni, W. G. B. 



Formerly I supposed this species to be Arion Andersoni, of Dr. Cooper. 

 Learning that Dr. Cooper's species is a Prophysaon, I still retain for this thr 

 specific name Andersoni, W. G. B. 



Arion foliolatus, GLD. 

 Still a doubtful species, known only by the original figure and description. 



Binneya notabilis, J. G. COOP. 



Also found by Mr. Orcutt fifty miles from St. Quentin Bay, Lower 

 California. 



Hemphillia glandulosa, BL. & BINN. 



Patula striatella, AXTH. 

 Mariposa, California. 



Patula pauper, MOR. 



Patula asteriscus, MORSE. 

 Tacoma, W. Territory. 



Patula solitaria, SAY. 



Plate I. Fig. 1O. 



This can hardly be considered a species of the Pacific Province, though colo- 

 nies have been found west, of the Cascades. (See pp. 27, 28.) 



The specimen figured was found by Mr. Hemphill at White Bird Civk. 

 Salmon River, Idaho. 



Microphysa Lansingi, BLAND. 



Microphysa pygmeea, DHAP. 

 See p. 35. 



