Volume 4

Observations on the genus Unio / [Isaac Lea].

  • Lea, Isaac, 1792-1886
Date:
[1834-1874]
Catalogue details

Licence: Public Domain Mark

Credit: Observations on the genus Unio / [Isaac Lea]. Source: Wellcome Collection.

    21/126 (page 5)
    SUCCINEA CAND^ANA. Testa obliquo-ovata, subnitidd, obsolete varicosa, diaphand, rosed; spird brevi; suturis subimpressis; anfractibus ter- nis, inflatis; aperturd lato-ovata. Shell obliquely ovate, somewhat shining-, obsoletely varicose, diaphanous, rose colour; spire short; sutures impressed; whorls three, inflated; aperture wide-ovate. Hab. Martinique. Lieut. Cande. My Cabinet and Cabinet of M. Cande, Paris. Diam. .58, Length .85 of an inch. Remarks.—Lieut. Cande, of the French navy, was kind enough, a few years since, to give me, among many interesting shells, collected in the Island of Martinique, several specimens of this Succinea, which I name after him. I am not aware that it has else¬ where been noticed. In form and size it resembles S. obliqua, (Say.) It is, however, larger, has the sutures less impressed, of a redder colour, and in its varicose markings entirely differs. It has some resemblance to that species figured by Ferussac, pi. II. A. fig. 7, bul it is more inflated, and the spire is much more obtuse. Succinea fulgens. Testa obliquo-ovata, fulgens, diaphand, striata, aurea; spird subelevatd; suturis impressis; anfractibus ternis, con¬ texts; aperturd lato-ovata. Shell obliquely ovate, brilliant, diaphanous, striate, golden colour; spire rather elevated; sutures impressed; whorls three, convex; aperture wide-ovate. Hab. Cuba. M. Poey. My Cabinet. Diam. .30, Length .45 of an inch. Remarks.—Among other land shells received some years since from Mr. Poey, who had under his charge the Botanic Garden of Havana, I received a single specimen of Succinea which does not appear to me to have been described. In form it somewhat re¬ sembles the ovalis, (Say,) but differs in size and colour. In its brilliant colour it is allied to S. aurea herein described. It is, however, less brilliant, more inflated, and quite double the size. The aperture is about two-thirds the length of the shell, and the apex takes a reddish hue. Succinea Oregonensis. Testa obliqua, tenui, rugoso-striata, rufd, subdiaphand; spird exsertd; suturis valde impressis; anfractibus ternis, inflatis; aperturd magna, lato-ovata. Shell oblique, thin, rugosely striate, reddish, subdiaphanous; spire exserted; sutures much impressed; whorls three, inflated; aperture large, wide-ovate. Hab. Oregon. Prof. Nuttall. My Cabinet, and Cabinets of Prof. Nuttall, and Dr. Jay. Diam. .15, Length .30 of an inch. Remarks.—A single specimen only of this small species was given to me by Mr. Nut¬ tall. It nearly answers to Mr. Say’s description of S. avara, but differs in size, colour and form from that usually received as his species. The spire is elevated for a Succinea, and curls somewhat like a worm. The aperture is a good deal rounded, and is about two- thirds the length of the shell. Succinea inflata. Testa subrotundd, inflata, tenui, lactea; spird brevi; suturis subimpressis; anfractibus tertiis, rotundatis; aperturd lato-ovata. Shell subrotund, inflated, thin, milk-white; spire short; sutures impressed; whorls three, rounded; aperture wide- ovate. Hab. South Carolina. Prof. Ravenel. My Cabinet, and Cabinet of Prof. Ravenel. Diam. .30, Length .45 of an inch. 2