LIGHT PRODUCTION IN CEPHALOPODS. 



157 



TABLE II. 



RECAPITULATION OF RECENT CEPHALOPODA. 



Class CEPHALOPODA. 

 Order TETRABRANCHIATA. 



Number of 

 Genera. 



Number of 

 Species. 



Number of 



Photogenic 



Species. 



Suborder NAUTILOIDEA. 



Family Nautilidce I 



I i 

 Order DIBRANCHIATA. 



Suborder DECAPODA. 

 CEgopsida. 



Family Archileuthidtf I 



Family Gonalidce i 



Family ONYCHOTEUTHID.E 6 



Family LYCOTEUTHID^E 2 



Family LAMPADIOTEUTHID.E i 



Family ENOPLOTEUTHID^E 10 



Family OCTOPODOTEUTHID^: 3 



Family HISTIOTEUTHHXE 3 



Family BENTHOTEUTHID.E 2 



Family Brachioteuthidce 2 



Family OMMASTREPHID.E 9 



Family Thysanoteuthidce i 



Family Lepidoteuthidce I 



Family CHIROTEUTHID.E 5 



Family Grimalditeuthidce i 



Family CRANCHIID.-E 18 



66 



f j 



Myopsida. 



Family LolighiidcB 6 



Family SPIRULID^E i 



Family Promachoteuthidce i 



Family Idiosepiida i 



Family SEPIOLIDJE 12 



Family Sepiadariince 2 



Family Sepiidce 4 



27 



Suborder OCTOPODA. 



Family CIRROTEUTHID.*: 



Family Ocythoidcs I 



Family Tremoctopodidce i 



Family Argonantidce i 



Family Alloposida i 



Family Amphitretidas i 



Family BOLIT/ENID.E 3 



Family Polypodidce 9 



14 

 2 

 20 



2 



I 



27 



3 



I4 



2 



5 



20 

 2 



I 

 28 



I 

 41 



O 

 O 

 2 

 2 



I 

 27 



14 

 2 

 O 

 2 

 O 

 O 



14 

 



34 + 



i?3 



99 + 



i + 



i 



2 

 SI 



3 



94 



o 



o 



26- 







o 



27 + 



23 



I 



1 + 



25 



2 



I 



7 

 148: 



195: 



I 

 o 

 o 

 o 

 o 

 o 

 I 

 o 



