38 



E1NAR LEA. 



[REP. OF THE "MICHAEL SARS" NORTH 



III. Remarks on the biology. 



The collection of larval muraenoids dealt with here 

 consists of about 200 individuals, representing 26 species. 

 The individuals are few compared to the number of species, 

 for the four species: Leptocephalus Anguillae vulgaris, L. 

 Congri balearici, L. Congri mystacis and L.Synaphobranchl 

 plnuatl are represented by 159 individuals leaving only 

 42 individuals representing the remaining 22 species. As 

 regards these last-mentioned 22 species, therefore, the 

 material was insufficient for a study of their biology, 



and such a study must be postponed until future investi- 

 gations provide more ample material of the numerous 

 species inhabiting the North Atlantic. A preliminary 

 attempt to give an idea of the occurrence of the entire 

 group in the Atlantic is made in the following pages, and 

 in the accompanying table we have indicated the number 

 of specimens of the different species taken by the "Michael 

 Sars" at twenty stations in the North Atlantic: — 



Species of Leptocephalus 





Stations near | 

 the coast of j 

 Africa 



Stations south of 

 the Azores 



Stations 



west of 



the Azores 



Stations between 



Newfoundland and 



West-Europe 



Stations 

 near the 

 coast of 

 Britain 



3 -O 



Z.S 



cj o 



E « 



1" 





34 | 39 j 42 | 45 



51 



52 | 53 



56 



58 



62 



64 



67 



81 



87 



88 



90 



92 



10 



94 



98 



L. Anguillae vulgaris 



„ Synaphobranchi pinnati. . 

 „ Histiobranchi infernalis . . 



„ Cyematis atri 



„ Congri vulgaris 



„ — mystacis 





2 



1 



6 



1 



18 



4 



1 



60 

 1 



1 



23 

 1 



C 



L. 

 1 



r 



i 



1 



1 



1 

 2 

 1 



1 



i 



2 



I 



2 

 1 

 1 

 1 



1 



( 



I 



] 





1 





r 



! 



i 



1 



r 



1 



! 



1 



1 





1 



1 



1 

 2 



41 



11 



1 



4 

 3 

 21 

 83 

 1 

 2 

 1 

 1 

 1 

 2 

 2 

 1 

 3 

 6 

 1 

 . 2 

 4 

 2 

 1 

 1 

 1 

 1 

 1 



12 

 7 

 1 

 2 

 3 

 4 

 2 

 1 

 2 



2 

 2 



— balearici 



„ spinocadux 



„ polymerus 



„ Michael-Sarsi 



„ splendens 



, enchodon . . 



„ euryurus 



„ similis 



„ proboscideus 



„ dolichorynchus 



„ stylurus 



„ Saurenchelydis cancrivo'a 



„ urosema 



„ canaricus 



„ megacara 



, small nr. 1 



- 2 



. - 3 



„ mysticus 



„ Gastrostomi Bairdii 



e. 







Number of individuals taken at 

 each station 



3 



7 



19 



8 



62 



25 



9 



6 



2 



15 



10 



3 



2 



1 



5 



4 



4 



2 



1 



13 







Number of species taken at each 

 station 



2 



2 



2 



5 



3 



3 



5 



3 



2 



4 



7 



2 



2 



1 



2 



1 



3 



2 



1 



2 



Number of individuals taken at 

 each group of stations 



37 



104 



28 



18 



14 







Number of species taken at each 

 group of stations 



8 



10 



12 



4 



2 











































































