222 
I much regret that Dr. Japha's treatise had escaped my attention 
when I decided to publish my note, for notwithstanding the fact that 
I had clearly understood before Dr. Japha what kind of markings 
the Fjelstrup pore figures were, there was, of course, after the 
appearance of Dr. Japha's treatise, no reason for me to publish my 
interpretation, which coincided with his. 
Dr. Japha's treatise, however, gives me occasion for the following 
remark: 
Against Fjelstrup's statement that the number of pores in each 
ring varies from about 20 to-50 Dr. Japha raises the objection that 
the number of pores hardly exceeds 20. There is, however, no 
reason to doubt the correctness of the number given by Fjelstrup. 
The fact is, as I have already mentioned, that the large rings with 
numerous pores are produced by giant squids (Architeuthus). The 
smaller rings with comparatively few pores must be produced by 
another species of cuttlefish. I have examined those cuttlefish which 
at all must be taken into consideration in this connection, and have 
stopped at Todarodes sagittatus Lamarck. In a 436 mm long specimen 
of this cephalopod the greatest diameter of whose suckers was 5 mm 
there were found on the suckers of the right tentacle 17—20 (23) 
and on that of the left tentacle 16—21 horny points; and in a very 
large specimen (total lenght 993 mm, greatest diameter of suckers 
10 mm) 16—20 points were found on the suckers of the right ten- 
tacle, and 17—19 on that of the left. Only on 2 out of 75 suckers 
there were found 23 points, on 5 were found 21 points, on the re- 
mainder 20—16 points. These figures accord extremely well with 
Japha's statement fdasz die Zahl der Poren 20 kaum iberschreitet.” 
There can be no question of other North Atlantic cephalopods, and 
that Todarodes sagittatus is particularly common in the open Ar 
lantic, and comes at certain periods in incredibly large shaoals In 
to the Faroe Islands, is well-known. 
The "pore figures" found in the skin of the Caaing Whale con- 
sequently are impressions produced by the suckers of two species of 
ten-armed cuttlefish, namely, Architeuthus and Todarodes sagittatus. 
22—6—1916. 
