12 
CRETACEOUS BRACITIOPODA 
of B. compressa in Erance is generally abore the zone ndtli Ammonites Botomagen- 
sis. All these characters so entirely agree -with the Indian shell and its geological 
position that they leave barely a donht as to its identity with Lamarck’s species. 
Localiig. — ll^est of Andoor, in a brownish calcarcons sandstone ; only one 
sjieciinen has as yet been foimd. 
Formation. — Ti’ichinopoly group. 
4. RnYNcnoNELLA CKENiFERA, StoUczka, PL I, Eigs. 8 — 10. 
Bhyn. testa transverse elongata, snh-tetragona sen siib-trigona, modice depires- 
sinscula, valva Jia;mali altera panto convexiore, marginem versus gradatim descen- 
dente ; snperficie radiatim multi-costulata ; coslulis 45 — tenuihns, suhcequalihus, 
media parte scepissime simplicibns, lateraliter plernmque dichotomis, omninis striis 
incrementi squamiformibus dense crenatie, ant parlim intersect is ; shin anteriore 
modice profit ndo, ter tiam partem latitndinis testce panlo snperante, 18 — ^0-coslulato ; 
umbone valde projiciente, snbrecto, aentato, foramine magno instructo ; deltidio 
moderate, foramen fere omnino circumdante. 
Tliis is a well marked species of a Bhynclionella, somewhat intermediate between 
B. dimidiata, — particularly the form described by Davidson (Brit. Cret. Brach., 
p. 82, pi. xi, figs. G — 14) as B. latissima, Soav., — and B. depmessa, Soav. 111111 the 
former the Indian species partly agrees in having numerous fine ribs, and with the 
latter in possessing an almost straight and greatly extended beak ; the more elongately 
transverse form, and the peculiarly scaly, creuated ribs, hoAvever, readily separate it 
from both the European forms. The size of the shell A’arics as usuall}^, and so 
do also the respective couA'cxities of the valves. 
The frontal sinus generally extends OA'er more than one-third the Aiddth of the 
shell ; in some specimens it nearly reaches the level of the couA'exity of the luemal 
vah'e, in others it distinctly does not so. The beak ridges arc well marked, mcetiug 
at an angle of about 105°; in then course they are slightly concave, and the 
area between them and the margin of the A^alve on each side is also someAA’hat 
excaA’ated, avcU marked Avith coarse strim of groAvth, and at the junction of the 
deltidium with a thin, slightly crenulatcd ridge. 
Localities. — S. E. of Arrialoor and S. W. of jMulloor, in whitish sandstone ; 
a few specimens from the former and one from the latter were examined. 
Formation. — Arrialoor group. 
5. RiiTNcnoNELLA NUTAKS, Stoliczlcci, PL I, Eigs. 11, 12, 13. 
Bhyn. testa siibrotundata sen transverse et sub-trigone oblonga, inflata, margi- 
nibits rapide declivis ; valva hcemali altera convexiore, serniglobosa, snperficie radiatim 
nunierosissime costellata, costellis 70 — 80, ad apices orientibus, Icevigatis, parthn 
simplicibns, partim dichotomis, (cqnidistantibus et sub-ceqnalibus ; fronte modice 
