454 CRETACEOUS GASTROPODA 
VIII. Fumily,—_VOLUTIDA, yp. 7A. 
a. Sub-family,—MAR GINELLIN 4, p. 75. 
( MarcinEtxacea, Troschel, Geb. d. Schnecken, IT, 1868, p. 57). 
Stimpson proposed the name Oysticus, and a distinct family Cysricrpx, for a 
shell very closely allied to a Marginella, Cyst. capensis, but the animal and espe- 
cially the dentition are somewhat different. Troschel (loc. cit.) accepts the genus 
in the MARGINELLINE. 
b. Sub-family,—V OLUTIN 4, p. 77. 
(Voturace, Troschel, Geb. d. Schnecken, II, 1868, p. 54). 
Meek in his Check list of N. American cretaceous Mollusca (1864, p. 21) 
quotes six species of Volutilithes, seven species of Voluta, and five species of 
Rostellites. 
Conrad (Am. Jour. Conch., IT, 1866, p. 66) characterizes a new genus Volu- 
tifusus, describing the species Vol. typus a miocene shell from N. Carolina, which 
is, I believe, generically identical with Athleta, Con., see p. 90. The Vol. Tuomeyi 
ought not to be referred to Athleta. 
In Check list of eocene fossils (Smiths. Mise. Coll., No. 200, p. 16), the same 
author quotes three species of Volutilithes from the lower eocene, referred to the 
cretaceous formation by other geologists. He also quotes several species of the 
genera Caricella and Otocheilus, which have been mentioned already in Am. Jour. 
Conch., 1865, I, p. 24. 
FicuLopsis PoNDICHERRIENSIS, Forbes, sp., p. 85. 
In young specimens the strize of growth are quite straight along the suture, 
and the spire is comparatively higher than in old ones. 
Page 86, third line, from below note that Mitra Murchisoni, Miler, is identical 
with Fulguraria elongata. 
Genus XVIII. VOLUTILITHES, Swains., p. 92. 
1. VoLUTILITHES SEPTEMCOSTATA, Lorbes, sp., Pl. IX, Figs. 1 and 2. 
1846. Voluta septemcostata, Forbes (Trans. Geol. Soc., London, VII, p. 131, Pl. XII. Fig. 3). 
1867. Volutilithes latisepta, Stoliczka, vide antea, p. 93. 
Upon examination of Forbes’ originals I found both species to be identical ; 
the original specimen shows all the transverse strive of equal strength, not unequal 
as in Forbes’ figure; there are four ribs visible on the last and five on the penul- 
timate whorl. 
ec. Sub-family,—VOLUTOMITRIN 4, p. 100. 
The only other cretaceous species of Volutomitra is Mitra pyruliformis, 
Miiller (Petreef. Aach. Kveidef., IT, 1851, p. 23, pl. 3, fig. 25), which is identical 
with Pyrula Binkhorsti of the same author (Suppl. 1859, p. 26, pl. 8, fig. 10). 
