106 THE NAUTILUS. 



cording to the usual custom, this form may be referred to as the 

 form or variety alba S. S. Berry. 



Triton gibbosus Brod., in California. — Ralph Arnold 

 in The Paleontology and Stratigraphy of San Pedro, quotes the 

 range of the living T- gibbosus as West Tropical America and 

 Panama. At this time Dr. Dall supposed that a single example 

 from San Pedro Bay had been washed from the fossil beds on the 

 beach. Another writer reports the species from San Pedro Bay 

 (see Nautilus, Vol. VII, p. 75). At the time I brought the La 

 Jolla material together (Nautilus, September, 1907), three speci- 

 mens were secured by Miss Mary A. Williams, Joshua L. Baily and 

 myself. These were not included in the L. J. list, as at the time 

 the identity was doubtful. The species can now safely rank in the 

 fauna of the state Maxwell Smith. 



Shells of the Lake Region of Maine The following mol- 



lusks were collected at Capens, Deer Island, Moosehead Lake, dur- 

 ing July, 1907 : Polygyra fraterna Say, P. albolabris Say, P. sayana 

 Pils., P. dentifera Binn., Vitrea hammonis Strom., Euconulus fulvus 

 Mull., Zonitoides arborea Say, Pyramidula alternata Say, P. cronk- 

 hitei anihonyi Pils., Sphyradium edentulum Drap., Succinea ovalis 

 totteniana Lea, Philomycus carolinensis Bosc, and Planorbis bicar- 

 inatus Say. — C. W. Johnson. 



Mollusca of La Jolla, California. — To the lists which have 

 appeared in the Nautilus, the following nudibranchs may be added : 



Chromodoris macfarlandi Ckll. Forms a distinct subgenus or 

 genus. 



Chromodoris californiensis Bergh (universitatis Ckll.). 



Archidoris montereyensis Cooper (?). Specimens immature. 



Cadlina flavomacidata McFarl. 



Cadlina marginata McFarl. (?). Specimens small. 



Doridopsis nigromaculata C. & E. {vidua Bergh, var. (?). 



Thecacera velox Ckll. 



Several others have been found at San Pedro and San Diego, and, 

 therefore, may be expected at La Jolla. 



In the Journal of Malacology, 1905, p. 42, is given a brief account 

 of a new Triopha from San Pedro. No specific name was offered, 

 because the notes on the external characters had been mislaid. 



