102 



BULLETIN 54, UNITED STATES NATIONAL MUSEUM. 



of Norway, II, 1899, pp. 70-71, pi. xxix. — Eiohardsox, American Natural- 

 ist, XXXIV, 1900, p. 216; Proe. U. S. Nat. Mus., XXIII, 1901, p. 513.— 

 Ohlin, Bihang till K. Svenska Vet.-Akad. Handl., XXVI, Afd. iv, 1901, 

 No. 12, pp. 23-24.— DoLLPus, Bull. Soc. Zool. France, XXVIII, 1903, pp. 

 5-6.— Norman, Ann. Mag. Nat. Hist. (7), XIV, 1904, p. 437.— Hansex, 

 Journ. Linn. Roc. London, XXIX, 1905, pp. 342-343. 



Localities. — Off Cape Florida; Atlantic coast of North America; also 

 British Isles; Shetland Isles; northern part of the western coast of 

 France; latitude 61'^ 16' north, longitude 1° 18' east; Mediterranean at 

 Villefranche and Naples; southern and western coast of Norway; Kat- 

 tegat; latitude 04° 48' north, longitude 6° 32' east. 



Deptli.—m-m^ fathoms; 140 m. to 1,210 m. (DoUfus); 808 fathoms 

 (Norman). 



Stebbing'^ sa^^s of this form: "It is a good swimmer, tenacious of 

 life, a savage devourer of tish, and not to be held in the human hand 

 with impunity." 



Fig. 83.— Cirolana borealis (After Harger). a, Lateral view, x 3. h. Second antenna. 

 X 10. e. First antenna, x 10. d, Pleopod of second pair of male, x 8. 



According to Sars, C. horealis is "one of the most effective scaven- 

 gers of the sea, excelling in this respect even the most voracious species 

 of Aiionyx among the amphipoda."'^ 



Bod}' oblong-ovate, almost two and a half times longer than broad, 

 5 mm. :12 mm., very convex. 



Head wider than long, 2 mm. :3 mm., with the anterior margin 

 widely rounded and produced in a small median point. Eyes small, 

 round, composite, and placed in the antero-lateral angles of the head. 

 The first pair of anteinue have the tirst two articles short, the second 



a Hist, of Crustacea, 1893, p. 343. 



«< Crust, of Norway, II, 1899, p. 71. 



