32 
THE VOYAGE OF H.M.S. CHALLENGER. 
The plivlogenetic relations of Sjnrula with other Dibranchiates may be represented 
by tlie following table : 
nctojHjds. 
Myojwiils. 
• Egopsids. 
' Tlie relations of tlie Octopods with the CEgopsids (more archaic), and especially the group Leachia, are 
demonstrated hy the following facts : 
1st Certain of these last have not more than eight arms {Leachia, Chaunoteuthis, Chiroteuthis 
h'HpittuU, adult Veranya, the Cejihalopod [embryo] of Grcnacher). 
2nd. Croftthin and lycachia among the (Egopsids, and the generality of Octopods, are deprived of a well- 
develoi>c«l '* resistance ” appMiratus. 
3nl. The f>ctoj)odH, like the (Egopsids, have still two pairs of well-developed salivary glands. 
4lh. ly'orhia and Chiroteuthis l/onjjlaiuli have no longer an infundibular valvule like the Octopods. 
Sth. The kiilneys of tlie Octopoils and of the GCgopsids stretch only to the ventral side of the visceral sac. 
6th. The t)ctoj>ods and the (Egopsids have two oviducts. • 
7lh. Cranrhia ami Learhia have no longer any nidamental glands, like the Octopods. 
“ih. In the Octo|iods, like the (Egopsids, we find cases of hectocotylised arms on the right or on the left. 
