The Spawning Areas of Sand-Eels in the North Sea: is 
4. This sudden appearance is explained. 
5. These early-hatched larvee are proved indirectly to belong almost 
exclusively to Ammodytes tobianus. 
| 6. These larvee are shown to be widely, but irregularly, distributed, and the 
localities where they are found in greatest numbers are indicated. 
7. Comparative figures are given proving that the area of greatest frequency 
is in the vicinity of the Orkney Islands and the Pentland Firth. 
8. The larvee occur with fair uniformity along the East Coast of Scotland 
from the Moray Firth to the Firth of Forth. 
9. Spawning areas depend on depth and bottom deposit. 
10. The frequency is low inshore and in the deeper parts of the central 
North Sea. 
11. The localisation of the spawning areas is a necessary preliminary to 
further investigations. 
REFERENCES. 
1880-84. Day.—-‘‘ Fishes of Great Britain and Ireland.” 
1883. Mobius and Heincke. —‘‘ Die Fische der Ostsee.”’ 
1889. M‘Intosh, W. C.—Scott. Fish. Board Rep., VIL., pt. III. 
1890. M‘Intosh, W. C., and Prince, EH. E.—Trans. Roy. Soc. Ed., Vol. 
XXXYV., p. 858-861. 
1894. Fullarton, J. H.—Scott. Fish. Board Rep., XII., pt. IIT., p. 313-321. 
1895. Masterman, A. T.—Ann. and Mag. Nat. Hist. (6) Vol. XVLI., p. 
1896. Cunningham, J. T.—‘‘ Marketable Marine Food Fishes.” 
1893-1896. Smitt, F. A.—‘‘ A History of Scandinavian Fishes.” 
1902. Ehrenbaum, H.—‘‘ Fauna Arctica.” 
1904. Ehrenbaum, E., and Strodtmann.---‘‘ Wiss. Meeresunters. Abt. Helgo- 
land,” Bd. VL, S. 103f. 
1904. HKhrenbaum, H.—‘‘ Wiss. Meeresunters. Abt. Helgoland,” Bd. VL, S. 
184-194. 
1906. Strodtmann, S.—‘‘ Wiss. Meeresunters. Abt. Helgoland,” Bd. VIL., S. 
157. 
1909. Ehrenbaum, E.—‘‘ Kier und Larven von Fischen,” Nordisches Plankton. 
1909. Saemundsson, Bjarni.—‘‘ Oversigt over Islands Fiske.” 
