26 DISCOVERY REPORTS 



Key to the Mediterranean and Eastern Atlantic Species 



I. Breast naked; scales on head not visible, completely embedded in the skin. 



A. Scales smooth, but with crenulate margins, small; 6 or 7 between last soft-ray of dorsal 

 and lateral line; spines on suborbital ridge small or wanting parens. 



B. Scales ciliated, sometimes spinulose, larger; 3 to 5 between last soft-ray of dorsal and 

 lateral line; spines on suborbital ridge well developed. 



1. Occipital pit present; base of pectoral broad, the lowermost ray inserted level with 

 root of pelvic spine and more or less in advance of uppermost. 



a. Pectoral with 18 (occasionally 17 or 19) rays; distance from origin of dorsal to 

 anterior edge of occipital pit equal to or a little greater than eye ; snout shorter than 

 eye, which is 3 to 4^ in head. 



a. Head 2^ to 2i in length; pores on head numerous; supraorbital tentacle 

 generally of moderate size or small ... ... ... ... ... ustulata. 



jS. Head 2 J to 2 J in length; pores on head fewer; supraorbital tentacle larger, 

 -3 to f eye angolensis. 



b. Pectoral with 19 or 20 rays; distance from origin of dorsal to anterior edge of 

 occipital pit il to more than twice eye; snout longer than eye, which is 4I to 6| 



in head scrofa. 



2. No occipital pit; base of pectoral rather narrow, the lowermost ray inserted a little 

 above level of root of pelvic spine and about opposite uppermost ... caiiariemis. 



H. Breast fully scaled; always some scales visible on opercular region, and often on cheek also. 



A. Scales all cycloid ; a well-developed occipital pit. 



1. Depth of head at origin of dorsal i\ to li in its length; supraorbital tentacle, when 

 present, small; pectoral extending to vent or a little beyond, li to if in head laevis. 



2. Depth of head at origin of dorsal i J in its length; supraorbital tentacle large, § to f 

 eye; pectoral extending nearly to origin of anal, i\ in head senegalensis. 



B. Scales spinulose and ciliated; no occipital pit. 



1. Pectoral with 15 or 16 rays; 2 or 3 rather feeble spines on posterior part of suborbital 

 ridge; head 2i to 2f in the length madiirensis. 



2. Pectoral with 21 or 22 rays; 7 or 8 strong spines on suborbital ridge, which is 

 prominent; head 2 J to 2 J in the length echinata. 



Scorpaena porcus, Linnaeus. 



1758, Syst. Nat., ed. 10, p. 266; Bloch, 1785, Nat. ausl. Fische, ni, p. 5, pi. clxxxi; Risso, 1810, 



Ichth. Nice, p. 187; Giinther, i860. Cat. Fish., 11, p. 107; Carus, 1889-93, Prodr. Faun. 



Medit., II, p. 640; Roule, 1907, Areh. Zool. exper. gen. (4) vi, Notes et Revue, p. xvii; 



Jaquet, 1907, Bidl. Inst, ocean. Monaco, cix; Page, 191 8, Rep. Danish Ocean. Exped. 



1908-10, II, A 3, p. 103. 

 Cottus massiliemis, Forskal, 1775, Descr. Anim., p. 24. 

 Scorpaena massiliensis, Lacepede, 1802, Hist. Nat. Poiss., iii, pp. 258, 269. 

 Scorpaena fasciata, Costa, 1850 (?), Faun. Napoli, H. Pesci, Scorpaena, p. 3, pi. iv. 



Depth of body 2 J to nearly 3 in the length, length of head 2^ to 25. Snout as long 

 as or rather shorter than eye, diameter of which is 4 to 5 in length of head and greater 

 than interorbital width. No visible scales on head, but a number of pores. A deep 

 occipital pit. Spines on praeorbital strong, each with a single point, but those on 

 suborbital ridge feebly developed or wanting. A well-developed supraorbital tentacle, 



