198 ACHATINELLA FUL.GENS. 



Oahu: the typical form is found in Kailua, but varieties 

 which may conveniently be classed with it are found in nearly 

 all the valleys between Palolo and Halawa (Gulick). 



''It is most nearly allied to A. versipellis Gulick. This 

 species is very rarely dextral. The specimen figured is from 

 Kailua " (Gulick). 



Mr. Sykes follows Newcomb in referring this to A. vul- 

 pina as a synonym. It seems to me to be a banded form of 

 versipellis. Like that it is rarely dextral. Shells from other 

 districts than Kailua, referred by Mr. Gulick to fuscolineata, 

 are probably forms of vulpina, superficially like the Kailua 

 type in markings. Some of them which I have seen from the 

 western valleys are forms of analoga ; and his ' ' fuscolineata ' ' 

 from Palolo are certainly fulgens. 



16&. A. FULGENS AMPLA Newcomb. PL 29, fig. 19 ; pi. 54, 

 j. 7 to 7c. 



' ' Shell dextral, conically ovate, polished ; whorls 5, rounded ; 

 suture simple, banded with a black stripe ; aperture large and 

 white; outer lip simple, acute, thickened within; columella 

 short, white or roseate, terminating in a twisted plait; apex 

 obtuse, roseate; epidermis light green or olive above, of a 

 deeper color on the last whorl. Length 14-twentieths, width 

 10-twentieths inch ' ' (Newcomb ) . 



Oahu: Koolau (Newcomb). 



Achatinella ampla NEWC., P. Z. S. 1853, p. 137, pi. 22, f. 

 19, 1854. PFR., Monogr. iv, 533. SYKES, Fauna Hawaiiensis, 

 p. 305, 1900. THWING, Reprint Original Descr., p. 59. 



There is an error, probably typographical, in Dr. New- 

 comb's measurement; 14-twentieths should be 17-twentieths 

 according to Newcomb 's original figure, which is reproduced 

 photographically on pi. 29, fig. 19. PI. 54, figs. 7-7c rep- 

 resent other specimens in Newcomb 's collection, no. 29904 

 Cornell University. The series includes both dextral and 

 sinistral shells. The very ample last whorl is the chief char- 

 acteristic distinguishing ampla from the other Koolau races, 

 ph&ozona, versipellis and fuscolineata. Some specimens ap- 

 proach very near to such versipellis as pi. 43, figs. Tb-ld, 



