215 
Fic. 77.—Acanth. Deverianwm, d’Orb. Fic 78.—Acanth. Martinii, d’Orb. 
compared with Arcestes from Hallstatt. Stoliczkaia Telinga, 
Srou., in its external form, certainly resembles some of the 
gigantic Arcestes from the Alpine Triassic strata of Hallstatt in 
the form and smoothness of the shell, and in the constriction 
of the mouth-border; but the shortness of the body-chamber, 
and the structure of the suture line, has not the most remote 
resemblance to the very characteristic suture line of the Triassic 
forms from the Austrian Alps. 
The shell is massive, highly involuted, sometimes discoidal, 
and with a wider umbilicus. Body-chamber about three fourths 
of a whorl in length. Mouth-border undulated, produced in 
the middle of the lateral wall, and slightly excised towards 
the siphonal or ventral area. The inner whorls provided with 
radii, which are not interrupted on the ventral area; the ribs 
attain here their greatest development; the body-chamber has 
a smooth shell, or some species has thickened ribs; the ventral 
side has neither a keel nor channels. The lobe line is much 
ramified, consisting of a siphonal lobe and a principal and lower 
lateral on each side, with a more or less developed columellar 
lobe having pendant digitations. 
I refer the reader to Dr. Ferp. SroriczKa’s magnificent 
volume on the Ammonitide from the Cretaceous formations of 
Southern India for remarkable types of this genus, such as :— 
Stoliczkaia argonautiformis, Stol. | — Stoliczkaia Telinga, Stol. 
” crataloides, Stol. ” Rudra, Stol. 
“ dispar, d’Orb. 0 Xetra, Stol. 
