. The land and sea mammals of Middle America and the West Indies . on posterior border; no caecum; pubic arch closed; tibia and fibulaimited. Nose long, overhanging the mouth. Subfam. 1. SoriciiiEe. Summits o( teeth colored red. Sorex is the largest genus of the familv, and is very mnncrouslyrepresented in North America, the species ranging from northernAlaska and Hudson Bay south into Mexico. Many of the namedforms have a verv close resemblance to each other, anil probably too SOREX. 649 many have l)cen given even a sul)S])ecific rank. Increased knowledgeand more familiarity with series of sp

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. The land and sea mammals of Middle America and the West Indies . on posterior border; no caecum; pubic arch closed; tibia and fibulaimited. Nose long, overhanging the mouth. Subfam. 1. SoriciiiEe. Summits o( teeth colored red. Sorex is the largest genus of the familv, and is very mnncrouslyrepresented in North America, the species ranging from northernAlaska and Hudson Bay south into Mexico. Many of the namedforms have a verv close resemblance to each other, anil probably too SOREX. 649 many have l)cen given even a sul)S])ecific rank. Increased knowledgeand more familiarity with series of specimens will eventually correctwhatever errors have been committed. I()l>. Sortx. (oiiiiiioii Slirtws. 2 2 0 0 11 .V .^ - Sorex Linn., S-st. Nat., i, 175S, p. 5:5; i, 1766, p. yj^. T-])e Sorcxarannis Linnaiis.Anotiis Wagn., Su])pl. Schreib. Sihigth., v, t<S55, p. 550. (nee RaHn., t<St5, Rodentia.)Ear tonch well developed; tail long; inner side of canine andincisor without secondary cusps; hraincase rather broad; niandil)lefragile; feet without fringe.. Fig. 102. Sorex orinus. No. 10S43 Field Coliimhian Mu.s. Knlargi-d 2li fiiiu-s. Ioolli rows Ililarnid 7 tiiius. KI.V TO SPKCIKS AND SUlJSri.CIKS.A. Size small; total length, 105 mm. or less. a. Beneath ashy gray 5. orizaba b. Beneath dral> 5. orcopolns c. Beneath chestnut 5. obscitnis 7ciitralis d. Beneath seal brown. a. Rump dark sepia brown 5. salviiii PAGE G50 SOREX. IAc.i-; b. Iviinip palov niixcil l>rovn and ilusk- >. stizchion 551 e. Hoiicath dark s;ray ov Maokish >. oriini, ^ 55^^ H. Size hirgo: total lcni;lh, 1 iS nun. ov over. a. Hind toot 15 nun. or over. , a. Honcath pale- dusk- brown : al>o-o bku-k. .5. vcncpacis 551b. Beneath seal brown. a. Above sepia and black ^^ )]hicroJoii 552 b. Above sepia brown tini^ed with chest-nut 5. i;((/;;/i/;// 552 c. Above sepia brown and dusk >. sclatcri 552 b. Hind foot less than 15 nun. a. Beneath drab };ra-; tail 47 nun >. saiissiirii z, ^:;, b. B