606 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [8] 



Habitat — Coasts of northern Europe, south to Cornwall; said to 

 range westward to Norway. 



Etymology : Exoletus, antiquated ; said to be in allusion to the anoma- 

 lous number of five spines in the anal. 



We have not studied this species, and have taken our description of 

 it chiefly from the account given by Dr. Day. It is the most northern 

 in its range of all the Labroid fishes. 



2. CENTROLABRUS TRUTTA. 



(Verde.) 



Crenilabrus trutta Lowe. "Proc. Zool. Soc. London, i, 1833, 143." (Madeira). 



Centrolabrus trutta Gunther, i, 93 (Madeira.) 



Acantholabrus viridis Cuv. & Val., xiii, 252, 1839 (Canaries). 



? Acantholabrus romerus Valenciennes, Webb &. Berthelot, Ickth. lies Canaries, 64 



(Canaries). 

 f Acantholabrus romeritus Valenciennes, 1. c. (Canaries). 



Habitat. — Madeira and Canary Islands. 



Etymology; trutta, low Latin word for trout. 



We know this species only from descriptions. We follow Dr. Giin- 

 ther in regardiug romerus and romeritus as probably indentical with 

 trutta. Possibly two species exist, trutta with five anal spines and 

 viridis ( = romeritus) with but four. 



Genus II.— ACANTHOLABRUS. 



Acantholabrus Cuv. & Val. xiii, 242, 1839 (palloni). 



Type : Lutjanus palloni Risso. 



Etymology : AxavOa, a spine ; Labrus, an allied genus. 

 This genus contains but one (possibly two) species, found in the 

 waters of Europe. 



ANALYSIS OF SPECIES OF ACANTHOLABRUS. 



a. [Body rather elongate; head long, with pointed snout, which is nearly one-third 

 the length of the head ; mouth large, the maxillary reaching the front of the 

 large eye ; spines rather long, the posterior longest ; soft dorsal and anal some- 

 what elevated ; both spinous and soft dorsal scaly; caudal rounded; pectorals 

 and ventrals short ; head, 3£ ; depth, 4. D. XX or XXI, 10. A. V, 9. Scales 4-42- 

 16. Color, olive, varying to orange or bluish above ; sides yellowish ; usually a 

 dark blotch at base of caudal, above lateral line; a large, black blotch on last 

 dorsal spines and the first soft rays; blue spots sometimes present on the scales 

 of lower parts, especially anteriorly.] (Day, etc.) < Palloni, 3. 



3. ACANTHOLABRUS PALLONI. 



(Tenco.) 



Lutjanus palloni Risso, Ichth. Nice, 1810,263 (Eza). 



Acantholabrus palloni Cuv. & Val., xiii, 243, 1839 (and of Gunther, Steindachner, and 



recent writers generally). 

 Acantholabrus imbricatus Lowe, "Proc. Zool. Soc, London, 1839, 86" (Madeira). 

 Acantholabrus couchi Cuv. & Val., xiii, 248 (Cornwall, after Couch) ; Gunther, iv, 92; 



Collett, Norges Fiske, 1875, 93 (Flekkefjord). 



