Volume Iii Part 14 (2/2)

_Yellow-mouthed Apple Snail._

_A. testa globosa, striata, olivacea, lineis remotis fuscis fasciata; spira levata, apice acuto; apertura effusa intus marginata; umbilico magno._

Sh.e.l.l globose, striated, olive, with remote transverse brown lines, spire elevated, the tip acute; aperture wide, within margined; umbilicus large.

The umbilicus of this sh.e.l.l is not so deep as the last, but is larger than in any other known species; the columella is likewise perfect, and the aperture is wider and more oblique than in _A. effusa_.

Pl. 158

[Ill.u.s.tration]

PINNA bullata, (_var._)

_Rufous Pinna._

GENERIC CHARACTER.

_Testa longitudinalis, cuneiformis, aequivalvis, apice hians, basi acuta; natibus rectis. Cardo lateralis, edentulus. Ligamentum marginale, lineare, praelongum subinternum._--Lamarck, _Sys._ vol. vi.

p. i. p. 129.

Sh.e.l.l longitudinal, wedge-shaped, equivalve, the valves gaping; the umbones straight, pointed. Hinge lateral, without teeth. Ligament marginal, linear, very long, subinternal.

Generic Types. _Pinnae rudis._ _Pectinata._ _Muricata._ Linn. Pennant, &c.

SPECIFIC CHARACTER.

_P. testa tenui, pellucida, rufa, aequilatera, striis remotis, sulcatis, transversim squamiferis, subspinosis; marginibus lateralibus rectis; margine inferiore oblique truncato._

Sh.e.l.l thin, pellucid, rufous, equilateral, with remote sulcated striae, crossed by transverse scales and obtuse spines; lateral margins straight; inferior margin obliquely truncate.

P. bullata. _Gmelin_, _p._ 3367. _Gualt._ _tab._ 79. _f._ c.

_Chemnitz._ 8. _tab._ 87. _f._ 769. _Knorr_, 2. 23. _f._ 1.

P. marginata. _Lam. Sys._ 6. _p._ 132. 7.

<script>