51 
far as the investigations go we may divide the murænoid species 
into two groups: 1 ) those spawning in or rather over great depths 
and 2) those spawning in shallow water. To the former belong 
Conger vulgaris , C. mystax and probablv also the fresh-water eel 
(further the parent forms of L. lanceolatus and ingolfianus) , to the 
latter Muræna helena, Ophichthys serpens and other Ophiclithys- 
species, the eggs of which I have been able to identify. The 
latter spawn in shallow water, inside the 200 or even the 100 m. 
line where their eggs and tiny larvae occur at the surface together 
with larvae of true Coastal forms. 
January 1912. 
Explanation of PI. III. 
Fig. 1. Conger vulgaris , length: 125 mm; Stat. 106, 2b l 6 1910, 36° 33' K, 
2 ° 00' W., 65 meters wire out. 
— 2 . Conger vulgaris, length: 14 mm; Stat. 144, 23 h 1910, 34° 31' N., 
18° 40' E., 25 meters wire out. 
— 3. C. (Congromuræna mystax ), length: 128 mm; Stat. 204, 27 1 s 1910, 
38° 52' K, 7° 43' E., 65 meters wire out. 
— 4. C. (Congromuræna mystax), length: 15mm; Stat. 10, 15 /12 1908, 
37° 21' N., 16° 45' E., 25 meters wire out. 
— 5. C. ( Congromuræna ) balearicus aff. = Leptocephalus Eckmani 
Stromman, emend., length: 95 mm; Stat. 329, 20 h 1911, 25° 32' N., 
52° 08' W., 35 meters wire out. 
— 6 . C. ( Congromuræna ) balearicus , length: 89 mm; Stat. 13, 19 l 12 
1908, 39° 45' N., 17° 30' E., 65 meters wire out. 
— 7. Leptocephalus lanceolatus Stromman, emend., length: 54 mm.; 
Stat. 263, 16 l 3 1911, 36° 42' N., 30° 36' W., 47 meters wire out. 
— 8 . Leptocephalus ingolfianus Johs. Schmidt, n. sp., length: 79 mm.; 
Stat. 310, 23 1 7 1911, 32° 03' N., 39° 00 ' W, 17 meters wire out. 
— 9. Leptocephalus Andreae Johs. Schmidt, n. sp., length: 101 mm.; 
Stat. 331, 23 1 7 1911, 35° 50' N., 29° 53' W., 35 meters wire out. 
All the figures are reproductions from photographs of specimens 
preserved in formaline. Figs. 2 and 4 are microphotograplis (x 11) by 
Er. C. U. Maaløe, Copenhagen, the remaining figures photographs 
(X l 1 / 3 ) by Pacht & Crone, Copenhagen. 
4 * 
