OF SOUTHERN INDIA. 417 
numerous, fine and closely set, then follows a broad band generally without any 
striee, after which the former again appear, being, however, more distant, and on 
the last whorl of well preserved specimens each stronger one alternating with one 
or two finer ones. 
Locality —Garudamungalum, in bluish, calcareous sandstone ; not rare. 
Formation.—Trichinopoly group. 
5. ACTHON CURCULIO, Forbes, sp., Pl. XXVII, Figs. 12-13. 
1846. Tornatella ewreulio, Forbes, Trans. Geol. Soc., Lond., VII, p. 135, Pl. XII, Fig. 25. 
1850. Pe BA idem, VOrbigny, Pictet, et alii. 
Act. testa elongata, cylindracea, spira acuminata, anfractibus sub-convexis, postice 
plus minusve conspicuiter truncatis, undique sulcis profundis, angustis obsolete puncta- 
tis notatis ; apertura longissima, angusta, labio intus sulcato, labro antice plica obliqua 
instructo. 
Spiral angle 48°- 50 ;° sutural angle 6°. 
Height of spire : total of shell (considered as 1:00) nes ap (UBEL 
Width of last whorl : height of, shell ( Ss oy a) be wae =0°44, 
A large, elongated shell, with a prominent pointed spire and a cylindrical last 
volution; along the suture the whorls are posteriorly more or less truncated ; the 
entire surface is covered with deep, obsoletely punctuated, spiral sulcations, being 
separated by broader flat ridges. The aperture is very long, posteriorly narrow and 
anteriorly rounded, the outer lip internally sulcated and the inner lip anteriorly 
provided with an oblique fold, which is rather small in proportion to the large size 
of the shell. 
Locality —Comarapolliam, in soft, coarsely grained sandstone ; rare. 
Formation.—Arrialoor group. 
6. AcTMHON JUNCEUS, Stoliceka, Pl. XXVII, Fig. 15. 
Act. testa elongata, spira turriculata, apice acuminato ; anfractibus circiter senis, 
postice ad suturam truncatis, ultimo cylindraceo, spiram in altitudine fere equante ; 
superficie undique spiraliter punctato-striata, striis postice prope suturam sitis tenuio- 
ribus et magis approximatis quam ceteris ; apertura postice acuta, antice rotundata, 
labro intus levi, labio antice uni-plicato. 
Spiral angle 48°; sutural angle 6°. ; 
Height of spire : totalof shell _ ... (considered as 1:00) 900 ve 0-43, 
Width of last whorl : height of shell ( #5 peeee)) see « O41, 
Shell very elongated and comparatively narrow, composed of six or seven, very 
slightly convex volutions, being posteriorly truncated along the suture, and having the 
last whorl little higher than the spire; the entire surface is marked with spiral, 
punctated impressed lines, the posterior ones being finer and placed rather more 
closely to each other than the rest. The aperture is narrow, posteriorly pointed, 
5K 
