OF SOUTHERN INDIA. 155 
T could have added as a synonym of this species the Pyrula filamentosa, Bink- 
horst (Mon. Gast. et Céph. de Limhg., 1861, p. 7, Pl. II, Fig. 5) from the upper cre- 
taceous deposits of Limbourg, if there was not a doubt about one all important point. 
A comparison, for instance, of Binkhorst’s Figure with our Fig. 3 on Pl. XIIT 
leaves actually no other specific distinction between the two, except that in our 
species the anterior portion of the inner lip is distinctly flattened, while in Bink- 
horst’s figure there is even no trace of such a flattening. This is, however, in the 
determination of the genus so very important that in case the Meestricht species 
does not actually possess that flattening, it must strictly be referred to the sub-family 
Fustv#, either to Perissolax or Hemifusus, although for my own part I would almost 
believe, that just at this point the fossil was not so well preserved as would seem 
desirable. 
Localities —Neighbourhood of Anapaudy and Andoor; N. of Alundanapooram ; 
N. of Serdamungalum ; W. of Kullygoody, Shutanure, Kolakonuttom, &e. 
Formation.—Trichinopoly group; chiefly in light coloured sandstones all along 
the frontier towards the Arrialoor group. 
4.—RAPA CORALLINA, Stolizcha. Pl. XIII, Fig. 5. 
R. testa pyriformi, spira brevi, conica, acutiuscula; ultimo anfractu ventricoso, 
postice planiuscula, obsolete striato, margine suturali tumescente, supra medium angu- 
lato, obtuse carimato atque tuberculato, antice sulcis angustis spiralibus et distantibus 
notato, canali recurvo et contorto prolongato. 
A small pear-shaped shell with a short pointed spire and a roundish last volu- 
tion. Along the suture the margin of the whorls is somewhat thickened, below 
they are flattened, and then obtusely angulated and tuberculated. The greater 
portion of the last whorl is covered with spiral sulci which are much narrower than 
the striz between them. The canal is tolerably long, contorted and somewhat 
recurved; the excavation of the columella only slightly indicated. Excepting fine 
striee of growth there are no stronger transversal ribs. 
This species is of all known cretaceous fossils most nearly related to Fusus 
Tippana, Conrad (Jour. Acad. Nat. Se. Phil., Vol. IV, p. 286, Pl. 46, Fig. 41) from 
Mississippi and indeed so much so, that were it not for the stronger tubercles on the 
last whorls, and for the want of the thickened posterior sutural margin on the whorls, 
both could be easily identified. In fact, if it could be proved that the want of the 
ornamentation on the spire has been caused in the American species by an erosion of 
the surface, there would scarcely remain sufficient ground for not carrying out this 
identification. 
Locality. Ninny oor ; not rare ; in a white sandy limestone with some Crprzipz, 
Votvurip#, Corals, and other fossils. The species appears to be very characteristic 
for these coralline beds. 
Formation.—Arrialoor group. 
