CONCHOLOGIGAL MEMORANDA, 



KTO- S. 



[From Proceedings Cal. Acad. Nat. Sci. August 20th, 1866.] 



Mr. Stearns read the following : 



Since my communication to the Academy of date of July ICth last, on the 

 shells of Baulines Bay, additional specimens (4) of Haliotis ru/escens have been 

 found by Mr. Harford and Dr. Kellogg ; also many specimens of Katherina tu- 

 nicata, and one of Mopalia Hmdsii ; from between the umbos of very large 

 specimens of Mijtilus Californianus, collected by the same gentlemen, several 

 specimens of Barkia subtenuis Carp.? 



In addition to the above marine forms, the following species were found by 

 the same parties in a gulch at Belvidere Ranch, not far from Capt. Morgan's 

 house, south side of Baulines Bay : Helix Nicklmiana, H. arrosa, H. mfumata, 

 H. Columbiana (hirsute var.) and H. Vancouverensis. Also, near a small 

 stream on the same ranch, Bijthinella Binneiji, Tryon. The last named species 

 had previously been found in this neighborhood by Rev. J. Rowell. 



[From Proceedings Cal. Acad. Nat. Sci. November 5th, 1866.] 



Mr. Stearns exhibited several specimens of J.(?»ncea a.sm^■, Midd., 

 collected by himself at Baulines Bay ; remarking that upon a recent 

 trip to the locality named, he found this species exceedingly numer- 

 ous, attached to CJdorostoma funehrale, A. A.d. ; that he had not 

 seen in a single instance this Acmiea upon the rocks. Mr. Stearns 

 further submitted for the inspection of the Academy, a specimen 

 of Haliotis Cracherodii, which he had collected alive last month, 

 on the rocks near the outlet of Lobitas Creek into the ocean. 

 The Haliotis had been attacked by a pholad, probably JVavea 

 NetvcomUi, and had defended itself by adding coating upon coat- 

 ing of nacre, as the Navea progressed, until a large knob or pro- 

 tuberance had been created in the interior of the shell. From a 

 partial examination of the borer, a specimen of which he had dug 



