MUSEUM OF COMPARATIVE ZOOLOGY. 173 



to examine and compare, or of which only a limited number of example? are 

 to be obtained and compared ? They [tin* skullsjvary in most genera much 

 more than was expected, before series of the skulls of each species were 

 collected and compared." 



These observation- by Dr. Gray arc fully confirmed by my own studies; 

 and I hence believe that, as the number of specimens of different species 

 increases in our museums, many species now believed to be valid will be 

 found to rest merely on individual characters. 



VESPERTILIONID^. 



13. Lasiurus noveboracensis Gray. Red Bat. 

 I i no horacensis Erxl., Syst. Reg. Anim., 135, 1717. 



Vespertilio lasiurus Gmel., Syst. Nat., 1788. 

 Vespertilio rubellus Pal. de Beaut., Cat. Peale's Mus., 1796. 

 ? Vespertilio cinereus Pal.de Beauv., Ibid. 

 ? Vespertilio pruinosus Say, Long's Exped., G7, 1S23. — Rich., Faun. Bor. 



Am., I, 1, 1829. 

 Taphozous rufus Harlan, Faun. Amcr.. 23, 1S25. 

 Lasiurus* ruf us Gray, List Mam. Brit. Mus., 32, 1842. 

 Lasiurus noveboracensis Tomes, Proc. Lond. Zoiil. Soc, 1837, 34. 

 ? Lasiurus pruinosus Tomes, Ibid, 37. 

 Lasiurus noveboracensis II. Allen, Mon. N. Am. Bats, 15, 1SG4. — J. A. Allen, 



Bull. Mus. Comp. Zoiil., I, 207, 1SG9. 

 ? Lasiurus cinereus II. Allen, Mon. N. Am. Bats, 21. 



Common. All of the several specimens obtained, both by myself 

 and Mr. Maynard, are of a deep cherry red, with but a slight skirting 

 of ash, and are uniformly much darker or deeper colored than any I 



have seen from the Northern States. All examined (nine specimens) 

 were males. 



14. Scotophilus fuscus II. Allen. Carolina Bat. 



Vespertilio fuscus Pal. de Beauv , Car. Peale's Mus., 14, 179G. — LeConte, 



Proc. Phil. Acad. Nat. Sci., VII, 437, Is.")."). 

 Vespertilio carolinensis Geoff St. IIil., Ann. du Mus., VIII, 193, 1806, pi. 



xlvii, rig. 7.— Harlan, North Am. Jour. Geol. & Nat. Sci., I, 218, 1831 — 



LeConte, Proc. Phil. Acad. Nat. Sci., VII, 437. 

 I rtibo arcuatus Say, Long's Expcd., 167, 1823. 

 I is Raf., Amcr. Month. Mag., 445, 1S18. 



Vespertilio ursinus Temm., Mam., II, 234, 1835. 

 - iophilus fuscus II. Allen, Mon. N. Am. Bats, 31, 1SG4. 

 Scotophilus carolinensis II. Allen, Ibid., 28. 



Common. Several specimens taken. 



