Gasterosteus fishes. ACANTHOPT. 219 



Length 17 inches. Body oval, compressed, olive, blue, and white, with a 

 round black spot on the side. 1st D. 10, 2d D. 24 ; P. 14 ; 1st A. 4, 2d A. 22; 

 C. 14. Tail round. Spinous scales on the back and belly, at the base of the 

 fins. Lateral line waved. — Willoughby mentions this fish as common in 

 CornwalL It is occasionally brought to the London market. 



Gen. LXXXV. SPINACHIA.— Lateral line armed with 

 large pointed imbricated scales. Ventrals, of a single ray, 

 supported by a spinous shield. 



165. S. vulgaris. — Back with fifteen spines. 



Aculeatus raarinus major, Sibb. Scot. 24. Will. Ich. 340.— Gasterosteus 

 Spin. Linn. Syst. i. 492. Penn. Brit. Zool. iii. 263. Don. Brit. Fishes, 

 t. 45 — In the sea rare. 

 Length 6 inches. Snout produced ; mouth tubular ; teeth smalL 2d D. 

 7, P. 10, A. I, C. 12. Tail even at the end. 



Gen. LXXXVI. GASTEROSTEUS. Stickleback.— 

 Ventrals of a single spine ; the bone of the pelvis forming 

 an intervening shield, pointed behind. 



166. G. P. aculeatus. — Three spines on the back ; scales on 

 the sides large, transverse. 



Pungitius, Merr. Pin. 189. Sibb. Scot. 25. — Pisciculus aculeatus. Wilt. 



Ich. 341. Gast. acul. Linn. Syst i. 489. Penn. Brit. Zool. iii. 261. 



Don. Brit. Fishes, t. xi — Common in rivulets, ditches, and lakes. 



Length 2 inches. Body square near the tail. 2d D. 11, P. 10, A. i, C. 



12. A voracious fish. Spawns in April. Sometimes found in estuaries, 



after floods, where it attains a large size. 



167. G. Pungitius. — Ten spines on the back ; sides smooth. 

 Piscis aculeatus minor, Will. Ich. 342. — G. Pung. Linn. Syst. i. 491. 



Penn. Brit. Zool. iii. 262. Don. Brit. Fishes, t. 32 In the sea and 



rivers. 



Length about an inch and a half; olive above, white below. Dorsal spines 

 irregular in their direction. 2d D. 9, P. 9, A. |. Tail rounded. 



Mr Couch states in reference to the Centronotus dtictor, or Pilot-fish, 

 that " Two of this species a few years since accompanied a ship from the Me- 

 diterranean into Falmouth, and were taken in a net." — Linn. Trans, xiv. 82. 



Gen. LXXXVII. LAMPRIS. Opah.— Snout short ; ven- 

 trals abdominal. 



168. L. Luna. — Fins red; body above greenish blue, with 

 silvery spots. 



Piscis maculis aureis aspersus, Sibb. Scot. t. vi. f. 3. Wallace, Ork. 37. 

 — Opah, Penn. Brit. Zool. iii. 223. Sower. Brit. Misc. i. p. 45. t. 22. 

 Do7i. Brit. Fishes, t. 97. — In the British seas rare. 



