Natural History Jottings. y 



Richardsoni F. and M., the cauline leaves were only 3-cleft, the 

 radical ones being- 6 to 7-cleft. 



SucciNEA. Although they have been described under different 

 names by American authors, there can be no doubt that species of 

 this Molluscan genus are common both to Europe and America. 

 From a careful comparison of American specimens of Succinea 

 ovalis Gould with European examples of S. pfeifferi Rossm. I 

 united these tw^o so-called species, and more recently I obtained 

 a Succinea at Niagara Falls, which I find it impossible to distin- 

 guish from the European S. putris Linn. S. pfeifferi has been 

 recorded from Grand Co., Col., as S. ovalis by Ingersoll. 



LiMNCEA Palustris FORM Decollata. I found this variety, 

 together with the type and a species of Sphoerium in a pond near 

 Black Lake, Summit Co., Col., on August 29th. I originally 

 described it from specimens obtained on Barnes Common, England, 

 in 1885. 



CoLAPTES Mexicanus. This interesting woodpecker is very 

 frequent in Colorado, on both slopes of the mountains. During 

 the summer they used to come in the early morning and peck at 

 the wooden tiles of our house (Swiit Creek, near West Cliff), just 

 in the manner related in Baird, Brewer and Ridgway's ' History 

 of North American Birds ' Mr. Ridgway now considers C. 

 Mexicanus merely a geographical race of the Eastern C. Auratus 

 Linn. 



Camnula atrox. On entering Leadville on August i8th, I 

 found this locust very abundant in the streets, and the next day 

 observed it in great profusion while crossing Fremont Pass. I 

 also took it on August 29th on Black Lake Creek, Summit Co., 

 in company with Arphia teporata Scudd., and an unidentified 

 species (Hippiocus?) with orange underwings. C. Atrox appears 

 therefore to be multiplying and extending its range eastward, as 

 predicted in the Rept. Comm. Agric. 1885. I am told that 

 extensive damage has been done by locusts this year about the 

 Greenhorn Range, Col., but I have not been able to find out 

 whether this species was responsible, or some other. 



Colorado Fauna and Flora. I am doing what I can to- 

 wards working out the fauna and floral of this State, and shall be 

 very grateful to any of your readers for any help they may be 

 willing to give, either by informing me concerning specimens 

 they have collected here, or referring me to published records 

 relating to Colorado. Distance from libraries and centres of in- 

 formation places obstacles in the way of ascertaining the recorded 

 fauna of the State, which I would fain ask for help in removing. 



West Cliff, Custer Co., Col, Dec. 1887. T. D. A. CockerelL 



J. G. Lemmon and wife, of Oakland, recently paid a long 

 deferred visit to San Diego, and propose to return again. 



