24 THE NAUTILUS. 



NOTES. 



GALBA FERRUGINEA IN OREGON Recently Mr. John A. Allen 

 sent me some small living Lymnaeas which, upon comparison with 

 western species, proved to be Galba ferruginea (Haldeman). They 

 were collected in a small pool at Oswego, Clockamas Co., Oregon, 

 and furnish the first authentic record of this species for this State. 



G. ferruginea has been authentically reported from California and 

 Washington. It was originally credited to Oregon by Haldeman, 

 the specimens being collected by Nuttall, but no locality was given. 

 Mr. Allen has added to his collecting laurels by rediscovering this 

 species in the State from which it was first described. 



These specimens show that there is considerable variation in the 

 degree of impression of the inner lip on the parietal wall, and hence 

 the umbilicus may be widely open or almost closed. The animal is 

 dark yellowish-horn flecked with small white dots. FRANK C. 

 BAKER. 



REVERSED SUCCINEA OVALIS AND OTHER SHELLS OF FRESH 

 POND, CAMBRIDGE, MASS While looking for Planorbis hirsutus, 

 I found a number of other interesting things at Fresh Pond. Vitrea 

 hammonis (electrina Gld.), Pupa ovata (modesta^), Euconulus fuhms, 

 Succinea ovalis, retusa and avara, Vallonia costata and excentrica, 

 Gochlicopa lubrica, Helicodiscus parallelus, Zonitoides arborea, Pyra- 

 midula cronkhitei anthonyi, etc., and 17 species of fresh-water shells. 

 Among the Succinea was one live, full-grown ovalis reversed. Is 

 this a common occurrence ? I have never found one before. WIL- 

 LIAM F. CLAPP, May 6, 1913. 



PUBLICATIONS RECEIVED. 



ON APOREMODON, A REMARKABLE NEW PULMONATE GENUS. 

 By G. C. Robson (Annals and Mag. Nat. Hist., April, 1913). A 

 minute limpet from Singapore is described under the above caption. 

 The shell is brownish-yellow with red radial stripes, the apex ante- 

 rior and turned toward the left side. The dentition has a remark- 

 able resemblance to that of Vallonia, near which it is for the present 

 classed by Mr. Robson. We suspect that it may turn out to belong 

 to the Siphonariidce when the entire animal is known. H. A. P. 



