hoyle: reports on the cephalopoda. 43 



Family CRANCHIIDAE. 



Cranchindae Gray, '49, pp. 36, 37. 

 Cranchiaeformes Steenstrup, '61, p. 69 (1). 



CRANCHIA. 



Cranchia Leach, '17, p. 137. 



41. Cranchia scabra. 



(Plate 10, Fig. 11.) 



Cranchia scahra Leach, '17, p. 140. 



Octopus {P/iilonexis) eijlais d'Orbignj», '35, p. 20, Plate 1, Figs. 8-14. 



Cranchia scabra Owen, '38, p. 105, Plate 21, Figs. 1-5. 



Philonexis eylais d'Orb., in : Ferussac & d'Orbigny, '35, p. 102, Poulpes, Plate 17, 



Figs. 4, 5. 

 Cranchia scabra Steenstrup, '61, p. 72 (4). 



Habitat. — " Station 74. Surface." [H. 103.] 



Station 6; North Pacific Ocean, 960 miles from Guadalupe Island; August 

 31, 1899; lat. 20° 26' N., long. 133° 28' W. ; 150 fathoms to surface ; temper- 

 ature, surface 75° ; one specimen, [H. 144.] 



The specimens here recorded cannot, I think, be referred to any other species 

 than C. scabra; the correspondence in the form of the body and fins and the 

 tubercles on the mantle is so close. At the same time there are certain differ- 

 ences in the form of the arms and arrangement of the suckers, which I 

 think it desirable to place on record, and I have therefore given a figure of the 

 oral aspect of the head with the arms of the example from Station 74 (Plate 

 10, Fig. 11). 



It will be seen that the " Albatross " specimen differs from Owen's descrip- 

 tion and figures in the following points : — 



1. There is no connecting membrane (" intervening web " of Owen) between 

 the arms. 



2. There are no proce.sses connecting the oral lip with the arms. 



3. The suckers are in a double series with an intervening space between 

 them. 



4. There is a double row of suckers on the stem of the tentacle not men- 

 tioned by Owen. 



It must, however, be observed that the " Albatross " specimen measures 

 only 11 mm. (just over 5 lines) from the posterior end of the body to the root 

 of the tentacle, whilst in Owen's the corresponding dimension was fully twice 

 as much (11 lines). Most of the charaotei-s above mentioned are such iv may 

 be fairly ascribed to incomplete development. Certainly this is the case with 



