76 



Spadella draco Krohn. (Charts IV to VI). 



Localities: 



Temperate (N. and S.) and tropical Atlantic; Mediterranean. Tropical Indo- Australian, and Japan. 

 Definitive observations: 

 Oceanic and Neritic 



N. limit (Atlantic): 4i°36'N., 56 18' YV. 

 S. limit (Atlantic): 4i°32'S., I7°39'E. 

 S. limit (Indo-Australian) : 9° S. 

 Surface, absent from closing nets. 

 Highest temperature: 29 C. 

 Lowest temperature: 17 7 C. 



This distribution agrees very closely with that of enflata. 



The following table summarises in comparative form the horizontal distribution of valid 

 species in the epiplankton and mesoplankton ; it contains definitive observations only 1 ), except for 

 the inclusion of bipunctata and of the presumably deep-water species of the Siboga Expedition. 

 The areas named are not intended as 'zoological provinces', but are used merely for convenience 

 of geographical description. 





£ 



'3 

 O 



EPIPLANKTON 



MESOPLANKTON 





Atlantic Ocean 



Indo-austva- 

 lian Ocean 



e 

 O 



Z 



p. 

 6 



c 







a 





 co 



a 



3 



Atlantic Ocean 



Indo-austra- 

 lian Ocean 





rt 



Jl 



a. 

 S 



p 



0. 



1 



a, 

 S 



'S. 

 



1 



A 



3 





"a 







0. 



c/5 



Q. 



s 



en 



'S. 







ARCTICA 



Bedoti 

 bipunctata 



decipiens 



1 LEGANS 



ENFLATA 



FEROX 



FURCATA 



HEXAPTERA 



MACROCEPHALA 



MINIMA 



NEGLECTA 



PLANCTONIS 



PULCHRA 



REGULAKIS 



ROBUSTA 



SERRATODENTATA 



SlBOGAE 



Whartoni 

 Zetesios 



HAMATA 

 PAI II t ■ \ 

 SUBTILIS 

 C EPHALOP1 EF. \ 



1.1 -.. . , 



4- 

 + 



4- 



+ 

 + 



+ 

 + 

 4 



+ 



+ 

 + 

 4 

 4- 



+ 

 + 



+ 



+ 

 + 

 + 



+ 



+ 

 + 



+ 



+ 

 + 

 + 



+ 



+ 

 + 



+ 

 + 

 + 



+ 



+ 



+ 



+ 



+ 

 + 



+ 

 + 

 + 



+ 



+ 

 + 



+ 

 + 



+ 



+ 



+ 



+ 



+ 



+ 

 + 



+ 



4- 



+ 



+ 

 + 

 + 



+ 



+ 



+ 

 4- 



4- 

 + 



4- 



4- 



+ 

 4- 



4- 

 + 



4- 



+ 



4- 

 -f- 



+ 

 4- 



4- 



+ 



4- 

 4- 

 4- 

 4- 



4- 



4- 



+ 



4- 

 4- 



4- 



4- 



4- 

 4- 



4- 

 + 



+ 



4- 



+ 



+ 



4- 

 4- 







+ 



4- 

 4- 



4- 



4- 

 + 



4- 

 4- 

 4- 



+ 



4- 



4- 



4- 



4- 

 4- 



+ 

 4- 











+ 



4- 



4- 

 4- 



+ 



1) The tropical captures of furcaia in the Vertical net may have been epiplanktonic or mesoplanktonic or both; they are 

 recorded on the table by an interrogation. 



