OF SOUTHEllX INDIA. 
G3 
Note ox the Aiitiiuozoa ano Spondylozoa, represented in the South Indian 
CRETACEOUS DEPOSITS. 
These two suh-kiugdoms are so very scantily represented in our collection tliat 
it is scarcely worth while to enter into any particular details on the subject. 
However, in order to complete the account of the fossils which have as yet been 
found in these deposits, I shall briefly notice those species which have been 
described from Messrs. Kaye and Cunliffe’s collection, adding to these a few 
others of w^hich specimens have been procured during the course of the survey. 
VERMES. 
If we exclude a few doubtful tubes which are to all appearance referable to 
the Fholadacea, and others which belong to the Vermetidje, there are four species 
of Serpula and one of Ditrupa represented. The specific determination of these 
tubes is often very unsatisfactory, and though our materials are comparatively not 
very large, they admit of a tolerably good definition of at least three different forms. 
1. Serpula piliformis. Sow. PL XII, Fig. 6. 
Sowerby, Trans. Geol. Soe., Lond., iv, p. 340, pi. 16, fig. 2, 
Reuss, Bdhm. Kreide., pt. i, p. 20. 
S. socialis, in part, Goldfuss, PetrsEf. Germ., pi. 69, fig. 12. 
The tubes are round, smooth, generally half a millimeter thick, rarely increas- 
ing to one mm., growing socially in large masses, composed of variously twisted 
bundles of about 16 to 30 tubes in each. 
The Indian form exactly agrees with the European one in the form and thick- 
ness of tubes and manner of growth ; it can, I think, be fairly considered as 
identical with it. It was first well figured by Goldfuss as S. socialis, under which 
name he included forms from devonien, Jurassic, and cretaceous beds. Sowerby 
proposed to restrict Goldfuss’ name to the Jurassic form, and named the upper 
Greensand one from Blackdown S. filiformis. It occurs almost throughout the 
upper cretaceous beds (Upper Greensand and Chalk, Cenomanien, Turonien, and 
Senonien, Quadersanstein and Plaener) of England, France, Germany and Austria 
(Bohemia, Galizia, and the Banat). 
Locality. — Arrialoor, in light grey sandstone. 
Formation . — Arrialoor group. 
( 195 ) 
