HOYLE: REPORTS ON THE CEPHALOPODA. 13 
Habitat. — Tropical Pacific; September 1, 1899 ; lat. 189 19 N., long. 134° 57' 
W.; surface, 8 p. m.; temperature, surface 76° ; two specimens 9 . [H. 151, 152.] 
I refer these specimens to the above species with a 
little hesitation, because although the general appear- 
ance and relative lengths of the arms agree fairly well, 
there isa very definite pattern of conspicuous chro- 
matophores on the back of the head in both specimens, 
which does not appear either in d'Orbigny's description 
or figures. There are two large round chromatophores 
over each eye (compare Figure 4), the anterior a little 
nearer the middle line than the posterior. Almost in 
the centre of these four is a smaller one, whilst two 
others nearer the middle line peep out from under the Wie: d. fremovtopüs 
mantle-margin behind. On the arms are first three or Guayana Donal 
four chromatophores in a single series, and then a view. x24. Aq, 
double series almost up to the extremity. Aquiferous pores. 
= 
10. Tremoctopus scalenus,! sp. 1 
(Plate 4, Figs. 6-9.) 
Habitat. — Station 3388, off Cape Mala; March 9, 1891; lat. 7° 6' N., long. 
79° 48^ W.; temperature, surface 73°; one specimen 9, No. 7963. [H. 51.] 
The Body is roughly ovoid in form, but so mutilated posteriorly that it is 
dificult to make out its original shape correctly. The posterior extremity 
appears, however, to have been bluntly pointed as shown in the restored out- 
ine (Plat Me 
line (Plate 4, Fig. 7). 
T i y ‘ i à ‘ 
The Head is small, the sides being occupied entirely by the prominent eyes. 
The integument is so damaged that the aquiferous pores can no longer be 
made out. 
, : 
The Arms are very slender and of unequal length, the second pair enor- 
mously exceeding the others. The Suckers (Figs. 8, 9) are small, prominent, 
widely separate and alternating. There is no trace of hectocotylization. 
Dimensions. 
Length, total Sire v o9 0% 
End of body to mantle-margin . » . . . . . 16 
End Or WOU tO OYO ea « «» * sara e Ue 
A ca s. os ed 
Brendchöothend. u 5.9 en. 20, osos 08 
Diameter of largest sucker. . » . 2.06 
1 In allusion to the marked inequality in the length of the arms. 
