THE NAUTILUS. 95 



gravid female on May 22, '08, out of a large number collected. 

 Among numerous specimens collected on April 24, June 23, July 17 

 none were gravid. Thus the " interim " appears to extend over the 

 month of May to July, with occasional individual exceptions. 



Anodontoides fcrussacianvs Lea. Autumn (Lea, III, '42); Octo- 

 ber (ibid.). Found gravid in May, August and October. Among 

 a dozen specimens, collected June 5, '08, in Little Shenango River, 

 and among numerous specimens of the var. subcylindraceus Lea, 

 collected on June 2, '08, in Lake Erie, not a single one was gravid. 

 This would establish an interim at least in June. No dates are at 

 hand for July. 



Symphynota compressa Lea. Autumn (Lea, III, '42); March, 

 September (Lea, ibid.). Gravid in May and beginning of June 

 (June 2 in Lake Erie; only part of the outer gills charged). No 

 gravid females taken during the rest of June, and during July, but 

 only a small number of specimens was secured during this time. 

 Beginning August 6, all through the month, and during September 

 and October, gravid females were abundant. The color of the mar- 

 supium is very variable in this species : whitish, pink, orange, 

 brown, and probably depends on the stage of development of eggs 

 and embryos. 



(To be continued.} 



NOTES. 







SHELLS NEW TO THE NEW ENGLAND FAUNA In a very small 



portion of shell-sand gathered by Mr. John Robinson at Hampton 

 Beach, New Hampshire, I discovered a genus new to America, 

 namely Homalogyra atomus Phil. A subsequent visit to this place 

 enabled me to add a number of forms new to the New England 

 Coast north of Cape Cod. Among those thus far determined is a 

 Scissurella, probably crispata Flem., and Caecum pulchellum Stimp. 

 A few years ago Miss Marjorie C. Newell discovered specimens of 

 Tagelus devisus Spengl. on Coffin's Beach, and Miss M. W. Brooks 

 has detected a specimen of this species at Hampton Beach. 



Later I hope to make an extended paper with illustrations of these 

 and other new additions to our molluscan fauna. EDWARD S. 

 MORSE. 



