362 Nyctinomus Mohavensis. [zoe 



Flora Anglica about the beginning of this century and named 

 Conferva coccinea. Afterwards C. Agardh placed it in the genus 

 Dasya. 



I am indebted to Mrs. B. C Winston of Pacific Grove for 

 calling my attention to it, and for a specimen. It is by no means 

 abundant, but serves as an example of the curious fact that 

 many European Algae which do not appear on our Atlantic 

 Coast are found on our Pacific Coast. 



ON THE OCCURRENCE OF NYCTINOMUS MOHAVEN- 

 SIS IN THE SANTA CEARA VAEEEY. 



BY J. M. STOWELL. 



In the early part of last February the writer was informed 

 by Mr. Edward M. Ehrhorn, Horticultural Commissioner of 

 Santa Clara County, that the Court-house in San Jose was in- 

 fested by large numbers of bats, which were taking refuge 

 behind the iron window-shutters and disturbing the course of 

 Justice by their constant chattering. A visit to the Court-house 

 on February 27 showed that the state of aflfairs had not been 

 exaggerated. On opening the leaves of one of the shutters, the 

 bats were found thickly clustered in the darker recesses. They 

 seemed extraordinarily clumsy and made little attempt to escape, 

 only a few fluttering away after having fallen from their perch. 

 About seventy specimens were procured and prove to be repre- 

 sentatives of Nyctinomus mohavensis, with Merriam's rather 

 meagre description of which (N. A. Fauna, 2, p. 25) they en- 

 tirely agree. This species was described apparently from a 

 single specimen procured at Fort Mohave, Arizona, March 8, 

 1889, since which no additional specimens seem to have been 

 recorded. The present discovery of the species in the Santa 

 Clara Valley gives a notable extension to its range. 



We have been unable to compare N. mohavensis with the 



closely-allied N. brasiliensis, and Dr. Merriam neglects to point 



out the characters distinguishing the two species. Dr. Harrison 



Allen informs us that he considers both A^. mohavetisis and N. 



femorosaccus as at best geographical races of A^. brasiliensis. 



February 7, 1894. 



