494 Mr. G. E. Dobson on new Species of Crocidura. 
This second new species of Mesolepis is at once distin- 
guishable from M. tuberculatus by the scale-ornament, and 
from the Coal-measure species M. Wardi , Young, by the 
greater proportional size of the head and the peculiar small- 
ness and narrowness of the scales. 
Locality . Glencartholm, Eskdale. Type in Edinburgh 
Museum. 
Cheirodopsis Geikiei , Traq. 
More perfect examples of this interesting Platysomid show 
that not only were the dorsal and ventral peaks of Chei- 
rodus wanting, but that it possessed well developed ventral 
fins which are absent in the allied genus. 
Tarrasius problematicus , Traq. 
Prof. Zittel, in the ichthyological part of his c Handbuch 
der Palaeontologie,’ has provisionally placed this extraordinary 
fossil fish in the Dipnoi * *. More recent acquisitions show that 
such a view of its position is quite untenable, the pectoral 
fin, unknown previously, being rounded and with only a very 
small basal lobe. 
We now know the form of the entire fish, and, though the 
osteology of the head is not sufficiently clearly exhibited to 
decide its systematic position with absolute certainty, the 
obtusely lobate character of the pectoral fin seems to point 
towards the Crossopterygii. The teeth are small and obtuse. 
The anterior part of the body is naked, the small Acan- 
thodian-like scales only commencing behind the abdominal 
region. There is no trace of ventral fins. 
The locality of the original specimen was in the u Report ” 
erroneously stated to be Tarras Foot. All the examples as 
yet known were found at Glencartholm ; nevertheless the 
name of the genus must stand. 
LXII. — Descriptions of new Species of Crocidura. 
By G. E. Dobson, M.A., F.R.S. 
Crocidura Grayi . 
Like C. Horsfieldii f , but considerably larger, although the 
tail is not longer than in that species and is similarly nearly 
naked ; the fur (so far as can be ascertained from an inspec- 
* I. Abtheilung, 3 Band, p. 129. 
t Crocidura Horsfieldii \ Tomes, = C, return , Peters. 
