. Narrative of a voyage to the Polar Sea during 1875-6 in ships ' Alert' and 'Discovery' [microform]. Alert (Ship); Discovery (Ship); Alerte (Navire); Discovery (Navire); Natural history; Sciences naturelles. Jii I 111! 'â : w. Ifl II 220 AIM'KNUIX. No. V. wrinkly striiitcd. The o[K'rcMiluin is rouiifiisli, j^rot-nisjli yellow on tlif inner side, and diiiy yellowcxterioiiy; and the nucleus is nit her less centnil than in li. lidchcfi. Ti'ii'ltutrop'in tennis, s|). nov. Sht'll very thin, lij,dit, seini-tninsijarent, j,dossy white, olobosely turbinate, widely and openly umbilicated, cl
. Narrative of a voyage to the Polar Sea during 1875-6 in ships ' Alert' and 'Discovery' [microform]. Alert (Ship); Discovery (Ship); Alerte (Navire); Discovery (Navire); Natural history; Sciences naturelles. Jii I 111! 'â : w. Ifl II 220 AIM'KNUIX. No. V. wrinkly striiitcd. The o[K'rcMiluin is rouiifiisli, j^rot-nisjli yellow on tlif inner side, and diiiy yellowcxterioiiy; and the nucleus is nit her less centnil than in li. lidchcfi. Ti'ii'ltutrop'in tennis, s|). nov. Sht'll very thin, lij,dit, seini-tninsijarent, j,dossy white, olobosely turbinate, widely and openly umbilicated, clothed with a dirty-yellowish epidermis, produced on the keels of the whorls into close-set, very short, bristle-lik(! tilainents, and rather coarsely ol)li(iuely striated, or ruther hunellated, niarkin<4' perioils of j,^rowr,h ; whorls six, the two apical ones smooth and rounded, the three following beauti- fully sculptured with raised obli(iue lines of ^^rowth and minute spiral striie, keided and an<^ulated a tritie S. WS^ /J/llU 'il^^*^<' t,he middle, convexly slopin<^ above the keel and nearly straij;ht beneath it; last whorl large, encir- cled with three faint keels, two near the middle and the third at the base, bordering the umbili- cus; aperture sul)cireular, occupying about ^Y "^^ the entire length of the shell, whitish within, streaked with irregular, curved, yellowish-olive stripes; the peristome is continuous, thin, with the epidermis produced beyond its extreme edges; columella white, arcuate, with a slight shallow channel at its l)ase. Cireatest length 33 millims., diam. of last whorl above the aperture 18, greatest diam. 30; aperture 18^ long, nearly 17 wide. lliih. Off Cape Louis Napoleon, Grinuell I^and, 79° 38' N. lat., in 25 fms. (Feilden). Only a single specimen of this grand new Triehotroph was obtained. It is very different from any hitherto de- scribed, being remarkable for its circular aperture, conical spire, and extreme fragility. T
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Keywords: ., bookcentury1800, bookdecade1870, books, booksubjectnaturalhistory
