sm 
Fæ 
245 
the older stages, their number being 15—20. In the 
smaller stages (abt. 1 cm in length) only a few pigment 
Spots are present situated at some distance from end of 
tail. The pigment spots are not superficial and move in- 
wards during development). 
«. Length abt. I cm: Preanal distance abt. %/5, length 
of snout abt. ”/9 of total length. 
Length abt. 2 cm: Preanal distance abt. ”/3, length 
of snout abt. "/z of total length. 
Number of vertebræ 67—69. 
P. speciosus Bellotti. 
B..Length abt. 1 cm: Preanal distance abt. !/4, length 
of snout abt. ”/15 of total length. 
Length abt. 2 cm: Preanal distance abt. %/5, length 
of snout abt. '/10 of total length. 
Number of vertebræ 70. 
P. coregonoides Risso. 
b. No dorsolateral row of small pigment spots. 
Number of vertebræ 79—82. 
P. Rissoi Bonaparte. 
Key to the species inhabiting the North Eastern part 
of the Atlantic. 
I. Ventral pigment between anus and anal fin. 
P. pseudosphyrænoides nov. spec. and 
P. sphyrænoides Risso. 
(as to their distinction see the Key to the Mediterranean 
Species). 
No ventral pigment between anus and anal fin. 
A. Dorsolateral row of small pigment spots present (as to po- 
sition and number see P. coregonoides Risso in Key to the 
Mediterranean species). 
Number of vertebræ 72——73. 
P. borealis Reinhardt. 
w 
No dorsolateral row of small pigment spots. 
Number of vertebræ 33—85. 
P. Krøyeri Litken. 
