Zoogeographical Investigations in Southern Greenland. 249 
rostrum, and telson more resembling, though not altogether identical 
with that of S. septemcarinata, I consider it sufficiently certain that 
the specimens in question really are young stages of this species, and 
not of S. Sarsii. Moreover, the pigment spots on the telson agree entirely 
with those shown in Sars’ figure of the older larva (1. c., Pl. 5, fig. 21) 
while the size (13 mm.) corresponds closely enough to the length of 
11,5 mm. noted by Sars in the case of the older larva. 
The species is not uncommon in East and West Greenland waters. 
11. Pontophilus norvegicus M. Sars. 
Conspectus р. 20. 
Only the larva, not the adult, was taken (see G. О. Sars, Decap. 
Forvandl. 3, Archiv for Math. og Naturvid., Christiania, vol. 14, 1890, 
p- 160, Pl. 4). 
Bredefjord St. 31, 700 m. w., 1 spec.; St. 47, 600 m. w., 1 spec.; 
St. 72, 400 m. w., 1 spec.; St. 73, 300 m. w., 1 spec.; St. 86, 100 m. w., 
1 spec.; St. 100, 500 m. w., 1 spec. — Bredefjord Sermilik St. 118, 
500 m. w., 1 spec. — Bredefjord St. 126, 800 m. w., 3 spec.; St. 132, 
700 m. w., 1 spec. 
Hitherto found in W. Greenland only at 635 %—663/.° N. 
12. Spirontocaris Fabricii Kr. 
Conspectus p. 21. 
Kvanefjord St. 4, 20,5—35 m., 3 spec., 1 with Sylon Hippolytes; 
St. 13, 34—40 m., 4 spec., 1 with Sylon Hippolytes. — Bredefjord 
St. 32, 35—37 m., about 10 spec., 1 with Sylon Hippolytes; St. 36, 29— 
100 m., 4 spec., 1 with Sylon Hippolytes; St. 48, 500 ccm., 11 with Sylon 
Hippolytes; St. 61, 12,5—13 m., 250 cem., a few with ova, and 1 with 
Sylon Hippolytes; St. 62, 10—12 m., 6 spec., 1 with Sylon Hippolytes; 
St. 66, 9—11 m., 400 cem., 1 with Sylon Hippolytes and 1 with Bopy- 
roides Hippolytes; St. 79, 30—50 m., about 20 spec., one with Sylon 
Hippolytes; St. 88, 40—70 m., 1 spec.; St. 89, 16—17 m., 125 cem., a 
few with ova, 1 with Bopyroides Hippolytes; St. 104, 7—20 m., 100 
ccm.; St. 123, 5—10 m., about 35 spec. — Tunugdliarfik, St. 142, 
14—18 m., about 50 spec., about 10 with ova and 3 with Sylon Hip- 
polytes. — Skovfjord, 10—35 m., 2 spec., one with ova. 
Numerically speaking, this is by far the most widely distributed 
of all Spirontocaris species in the area investigated. It is an endemic 
West Greenland species, found from the southern point of the mainland 
up to 724° М. 
It is interesting to note that so many of these specimens have Sylon 
Hippolytes, not only on account of the number, but also because this 
parasite had never before been found attached to this host. 
For a larva and young stage ascribed to this species see p. 259, 266. 
