58 THK NAUTll.rS. 



THE CAMBRIDGE NATURAL HI8T0RY : ERRATA CORRECTED. 



ROBKRT E. C. STEAUNS. 



On page 38, Vol. III., " Molluscs, etc.," of the Cambridge Nat- 

 ural History (1895), occurs the following : 



" Mr. R. E. C. Stearns records ' a case of BuUminus pallidior and 

 H. veatchii from Cerros I., living without food from 1859 to March, 

 1865." 



The figure "3" refers to the Am. Nat., XI. (1877), p. 100; 

 Proc. Calif. Ac, iii, p. 329, in the foot-note, as the sources of the 

 foregoing statement whicih contains about as many errors as it is pos- 

 sible to get in less than three lines. I am well acquainted with the 

 person referred to, and have been for many years, also with his 

 articles in the volumes named in the foot-note, and can safely assert 

 the word BuUminus does not occur in either of his ])apers. He does 

 not say that the bulimoid form lived from 1859 to March, 1865, but 

 that examples of Bulimus pallidior lived from March, 1873, the day 

 they were collected, until June 22, 1875, two years, two months and 

 sixteen days, and that the specimens were collected at San Jose del 

 Cabo, Lower California; further, that one individual of the nine 

 was still living October 18, 1875. This species has not as yet been 

 reported from Cerros Island, where H. veatchii was collected and 

 lived, as stated. 



On page 278 of the Cambridge volume it says that the genus 

 BuUminus is peculiar to the Old World. I am not aware of its hav- 

 ing any representative in the Americas. We now write Bulimulus 

 for Bulimus, as I had it written in 1873. 

 Los Angeles, Gal., July 19, 190^. 



PLECT0PYLI8 IN THE RIUKIU ISLANDS. 



BY H. A. PILSBUY. 



Plectopylis (Sitiicola) hirasei, n. sp. 



Shell small, depressed, openly umbilicate, the upper surface con- 

 vex; uniform olivaceous brown. Surface dull above, glossy beneath, 

 sculptured above with fine growth-striai cut into minute beads by 

 equally fine decussating lines ; below with arcuate, rather irregular 

 and wide-spaced delicate riblets and fine growth-striae, and rather 



