1903.] ON THE POLYCLADS OF THE ‘‘ SKEAT EXPEDITION.” 301 
18. GAZELLA RUFICOLLIS H. & E. 
61. ¢. Gebel Tueis, 90 miles E. of Omdurman. 9 October, 
1902. 
This fine Gazelle is a most acceptable addition to the National 
Collection, in which the species is still badly represented. 
19, GAZELLA RUFIFRONS Gray. 
3$ 2. Agageh Wells, Kordofan. November 1902. 
Capt. Dunn tells me that this Gazelle does not range beyond 
about 50 miles to the northward of El Obeid. 
3. On a Collection of Turbellaria Polycladida from the Straits 
of Malacca. (Skeat Expedition, 1899-1900.) By F.F. 
Laipiaw, B.A. Cantab., Assistant Lecturer and Demon- 
strator in the Owens College.! 
[ Received March 19, 1903. ] 
> (Plate XXIII. & Text-figures 50-56.) 
The collection described below was made entirely by Mr. Evans 
on the shores of a small islet called Pulau Bidan, a few miles north 
of Penang. It proves a most interesting one, and includes, so far 
as I can discover, only one previously known species, Thysanozoon 
auropunctatum Coll. 
As in deseribing Mr. Gardiner’s collection from the Maldives 
[4], I have to note the scarcity or absence of the Euryleptide, 
represented doubtfully only by a much damaged fragment in 
Mr. Evans’s series, 
The only previous record of species from the shores of the 
Malay Peninsula that I have been able to discover was made by 
Collingwood, who described and figured the following species from 
Singapore :— 
Thysanozoon allmani. Hurylepia kelaartii. 
Proceros hancockianus. | Elasmodes obtusum. 
ss buskit. | Leptoplana aurantiaca. 
Sphyngiceps lacteus. 
Grouping these specimens with those of the Skeat Collection and 
adding Pseudoceros bedfordii from Singapore, kindly given me by 
Mr. Lanchester, we get the following list classified according to 
Lang’s system [6] :— 
Acotylea. 
PLANOCERIDA. 
* Planocera sp. 
1.* WNotoplana evansit, sp. n. 
1 Communicated by Dr. S. F. Harmer, F.Z.S. 
2 For explanation of the Plate, see p. 318. 
