LEPORID/E— BIBLIOGRAPHICAL RESUME. 281 



(2) Hydrolagus palustris (=L. palustris), to which he properly refers his L. Douglassi var. 2; 



(3) Sylvilagus nanus (= L. sylvatieus) ; (4) Sylvilagus Artemisia and (5) Sylvilagus Baclimanni 

 [rio] (4 and 5 = £. sylvatieus var. Nuttalli) ; (C) Leows areiicus (= L. timidus var. arcticus) ; (7) 

 Lepus americanus; (8) Lepus Washingtoni (= L. americanus var. Washington!) ; (9) Lepus cam- 

 pestris ; (10) Z.qj«s caltotis [sic], including the synonyms usually referred to i. callotis ; (11) 

 7.ep«s caVfornieus (properly including his own i. Bemietli with its other synonyms) ; (12) ?i. 

 longicaudatus, " Magellan's Straits", although he previously refers " L. longicaudatus Gray " to 

 L. saxatilis {\) ; (13) Tapeti brasiliensis. Under Cuniculus fodiens (= Lepus cuniculus Linn.), 

 he properly places the " L. magellanicus Less.", based on feral specimens of this species from 

 tho Falkland Islands. 



1 868.— Abbott, Cook's Geol. of New Jersey, 759. L. sylvatieus in New Jersey. 



1S68.— Cooper, Amer. Nat., ii, 536. Notes on the habits and distribution of L. Townsendi (=£. cam- 

 pestris) aud L. "artemisia". 



1868.— Brown, Proc. Zool. Soc. Lond., 1868, 351. Notes on L. americanus. 



1869.— Allen, Proc. Bost. Soc. Nat. Hist., xiii, 194. L. sylvatieus in Iowa. 



1869.— Allen, Dull. Mus. Comp Zool., i, 239. Sglvilagus nanus {=L. sylvatieus) in Massachusetts. 



1869. — Cooper, Amer. Nat., iii, 470. Distribution of L. callotis and L. calif ornicus in the Colorado 

 Valley. 



1869.— Coues, Proc. Bost. Soc. Nat. Hist., xiii, 86. Biographical account of L. palustris. 



1869. — Frantzius, Wiegm. Arch., 1869, i, 226. L. brasiliensis in Costa Rica. 



1 869.— Hayden, Amer. Nat., iii, 115. Lepus Bairdii (=L. americanus var. Bairdii) described. 



1869. — Welch, Proc. Zool. Soc. Lond., 1869, 228. Seasonal changes of color in L. americanus. 



1871. — Allen, Bull. Mus. Comp. Zool., ii, 184. L. sylvatieus and L. palustris in Florida. 



1872.— Gilpin, Proc. aud Trans. Nov. Sco. Inst. Nat. Sci., iii, 46. Notice of L. americanus. 



1872.— Hensel, Abhandl. d. phys. Klasse d. kouigl. Akad. d. Wisseusch. zu Berlin, 1872, 62. L. bra- 

 siliensis in Southern Brazil. 



1873. — Lincecum, Amer. Nat., 771. Distribution and habits of L. aquatints. 



1873.— Merriam, Hayden's U. S. Geol. Survey, 6th Ann. Rep., 666-668. " L. callotis?" (=L. campestris), 

 collected at Ogden, Utah, and a biographical notice of L. "Bairdii". 



187'I. — Allen, Bull. Essex Inst., vi, 52, 58, 61, 66. Notes on the distribution of L. callotis, L. campestris, 

 L. sylvatieus var. "artemisia", and L. americanus var. Bairdii. 



1875.— Allen, Proc. Bost. Soc. Nat. Hist., xvii, 430-436. A general synopsis of the American Leporida; 

 with an analysis of the species and varieties, based on tho collections of the Smithsonian 

 Institution and the Museum of Comparative Z.ology. Three primary divisions of the genus 

 Lepus are recognized, with two subordinate divisions under each. The specific and sub- 

 specific characters are briefly indicated, together with the principal synonyms aud the geo- 

 graphical distribution of each variety. The species and varieties recognized are as follows: — 

 (1) L. timidus var. arcticus ; (2) L. campestris ; (3; L. americanus, with varieties (a) americanus, 

 (b) virginianus, (e) Washingtoni, (d) Bairdii; (4) Lepus sylvatieus, with varieties (a) sylvatieus, 

 (b) Nuttalli, (c) Amhiboni ; (5) L. Trotvbridgei ; (6) L. brasiliensis; (7) L. callotis; (8) L.cali- 

 j 'ornicus ; (9) L. palustris. No really new form is here added, and only one of those given by 

 Baird in 1857 (L. Bachmani) is canceled. The two additions made to those given by Baird 

 are the L. Bairdii described by Dr. Hayden in 1869, and a variety through the division of 

 the L. americanus of Baird's work into two varieties. The chief difference between the 

 results here reached aud those given by Baird consists in the reduction of several of tho 

 formerly so-called species to subspecies, in consequence of the increased amount of material 

 at command having shown them to be jutergradiug forms. 



V.- -CHARACTERISTICS OF THE FAMILY AND SYNOPSIS OF THE SPECIES AND 



VARIETIES. 



Excluding the genus Lagomys, formerly associated with (he Hares, but 

 of late very properly regarded as the type of a distinct family, the Leporidce 

 constitute one of the most natural and best-defined groups among mammals. 

 The Lagoniyida: are decidedly their nearest allies, but differ in important 



