56 LAMINELLA. 



L. A. DUOPLICATA Baldwin, taken in lao valley by Mr. 

 Thaanum, is broader and shorter in figure than Mr. Baldwin 's 

 types, and the whorls are more convex. Some specimens 

 have no black markings. 



L. KUHNSI Cooke. Vol. XXI, p. 343. 



Some specimens from Kahakuloa, the type locality, have 

 no black markings. Others, from Ahoa, are copiously marked 

 with oblique, more or less zigzag and netted lines. In a few 

 the lines are sunken, as in L. aspera. 



L. CITRINA ( ' Migh. ' Pfr. ) . Vol. XXI, p. 350. 



Waihanau, and between Kahananui and Ualapue (Thaa- 

 num). Pipe-line trail near mouth of tunnel, upper Kauna- 

 kakai; bottom of ravine east of Pun Kolekole (Cooke and 

 Pilsbry). 



The Waihanau lot contains also specimens of the color- form 

 semivenulata, which is certainly not a subspecies, merely a 

 mutation occurring in some colonies. 



Mr. Thaanum found a pure colony of dextral citrina at 

 Kalamaula. All the embryos examined were dextral. 



L. DEPICTA Baldwin. Vol. XXI, p. 345. 



In deference to the opinion of Doctor Cooke and Mr. Thaa- 

 num this is now ranked as a species distinct from L. alex- 

 andri. Mr. Thaanum has two dextral individuals. Exactly 

 where in Kamalo the typical form (Vol. XXI, pi. 52, figs. 10, 

 13-16) was found we do not know. 



L. depicta kamaloensis P. & C. A form found in north- 

 western Kamalo above the amphitheatre, along the old Kamalo 

 ditch, differs from depicta by its constantly smaller size, more 

 convex whorls, the last more inflated, and by the decadent and 

 fragmentary pattern of black on a ground varying from straw 

 yellow to apricot buff. It was taken in some abundance by 

 Cooke and Pilsbry in several places in the district mentioned, 

 and has also been found by Mr. Thaanum, who took the shells 

 figured in Vol. XXI, pi. 52, figs. 6, 7, 8. 



Length 12, diam. 6.2 mm., 5y% whorls. 



