14 Occurrence of Salmo macrostigma in Sardinia. 
mottled with brown and mother-of-pearl; spinous dorsal and 
anal with numerous dark horizontal streaks; soft dorsal and 
caudal with round light spots on a dark ground, the edge of 
the fins bright yellow. 
Total length 420 millim. 
Albert Edward Nyanza. A single specimen. 
This fine fish, one of the largest of the family Cichlide, is 
named in memory of Dr. John Anderson. It is closely 
allied to P. Tanganice, Gthr., from which it differs in the last 
dorsal spine being much longer than the middle ones. 
IV.—On the Occurrence of Salmo macrostigma 7 
Sardinia. By G. A. BoULENGER, F.R.S. 
THE British Museum has just received from Lieut. H. G. S. 
Sandeman, R.N., several specimens, measuring from 64 to 
13 inches, of the river-trout of Sardinia, which, referred to by 
Cetti (“Anf. e Pesci di Sardegna,’ p. 74) as “ la Trota 
Sarda” and by Carruccio (Atti Soc. Ital. xi. 1869, p. 569) 
as Trutta fario, does not appear to have ever been carefully 
examined or compared with examples from other parts. It 
may therefore be interesting to place on record that these 
specimens agree in every respect with the form of Sadmo trutta 
which occurs in the rivers of the Atlas of Algeria and Mo- 
rocco, and which has been described by Aug. Duméril as 
Salar macrostigma (Rev. et Mag. de Zool. 1858, p. 396, 
pl. x.). The species was based on young examples from the 
rapid streams of the Wed-el-Abaich, in Kabylia, and the 
name macrostigma was suggested by the parr-marks along 
the sides of the fish: the name remains an appropriate one, 
since it is characteristic of this variety to retain them through- 
out life; at least they can be traced more or less distinctly 
in specimens up to 13 inches long. The Sardinian Trout 
agree in every respect with Algerian and Moroccan specimens 
in the Museum, even in the low number of pyloric appendages, 
of which I count only about twenty. The caudal fin is 
deeply emarginate in the young, feebly in the adult. The 
maxillary extends to below the posterior border of the orbit or 
a little beyond. 10 to 12 gill-rakers on lower part of anterior 
arch. 15scales between the posterior extremity of the adipose 
fin and the lateral line. A large round black spot on the 
cheek, on a level with the centre of the eye. 
