. The sense of touch in mammals and birds : with special reference to the papillary ridges . Fig. 18.—Slow Loris. Nycticcbus tardigradus. Manns, right. Drawingfrom dead specimen and impressions. Slow loris {Nycticebus tardigradus).Hand. (Fig. 18.) D. I broad; well developed; fleshy; with wide pulpyshort nail. D. 2 short, and small pulp ; short nail. D. 3, 4, 5long with wide, fleshy pulps ; short nails. Palmar portion wideand fleshy.(o) Digits. ellipses on terminal phalanges, which start from a centre attips of phalanges (shown in Fig. 16).„ middle phalanges divided in centre by a longitud
. The sense of touch in mammals and birds : with special reference to the papillary ridges . Fig. 18.—Slow Loris. Nycticcbus tardigradus. Manns, right. Drawingfrom dead specimen and impressions. Slow loris {Nycticebus tardigradus).Hand. (Fig. 18.) D. I broad; well developed; fleshy; with wide pulpyshort nail. D. 2 short, and small pulp ; short nail. D. 3, 4, 5long with wide, fleshy pulps ; short nails. Palmar portion wideand fleshy.(o) Digits. ellipses on terminal phalanges, which start from a centre attips of phalanges (shown in Fig. 16).„ middle phalanges divided in centre by a longitudinalline, from which slope away slightly to the lateralborders.„ proximal phalanges similar on D. 1, 3, 4, 5.„ „ on D. 2 indefinite. DESCRIPTIONS OF THE PAPILLARY RIDGES 33 (6) Palmar surface. Five interdigital thenar eminence adjoining hypothenar eminence, whorl on ulnar interdigital eminence ; ellipses on the remain-ing eminences. D- —. -^ eTv Fig. 19.—Slow Lobis. Nycticebus tardigradtis. Pes, right. Drawing from^^ dead specimens and impressions. I. Shows arrangement of papillaryridges on the tip of D. 3. Foot. (Fig. 19.) Remarkable development of D, 1, showing extremeabduction and fleshy pad at base, dividing whole againinto two nearly equal parts; short nail. D. 2 very short,with long curved nail. D. 3, 4, 5 long, with fleshy pulps andshort naUs.(a) eUipses on terminal phalanges of D. 1, 3, 4, 5, startiui; froma centre at tips as on hand. C THE SENSE OF TOUCH IN ANIMALS Fig. 16 shows tip of D. 3 with nail and pulp, over which radiate from a bare , D. 2 ; well-marked, small whorl on tip of terminal phalanx.„ middle and proximal phalanges of D. 3, 4, 5 ; show central longitudinal line from which lines of slope to lateral borders.„ D. 1, proximal phalanx longitudinal.„ D. 2, indefinite.
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