256 K. STEPHENSEN. \ 
The time at which it taken, also (16. July) need not  olar nart:. 
the probabilty of this being the case, as Spirontocaris polaris has been 
aken with ova from St. 1 (21. June) to St. 142 (2. Sept.). 
Spirontocaris larva Nr. 2 (Fig. 6—7). (Sp. turgida?) 
1. stage. Kvanefjord St. 28, 400 m. w. (5/vur), 10 spec. — 
Bredefjord St. 47, 600 m. w. (18/vir), 1 spec. 
Intermediate stages. Kvanefjord St. 28, 400 m. w. (5/viz) 
about 25 spec. — Bredefjord St. 35, 400 m. w. (16/v11), 1 spec.; St. 
73, 300 m. w. (25/vit), 2 spec.; St. 84, 200 m. w. (31/vm), it spec.; St. 
89, 16—17 m. (31/vm), 1 spec. 
Last stage. Kvanefjord St. 28, 400 m. w. (5/vi1); about 50 
spec. — Bredefjord St. 35, 400 m. w. (16/vir), 1 spec.; St. 50, 100 m. 
w. (20/vit), 1 spec.; St. 59, 300 m. w. (20/viz), 1 spec.; St. 61, 12,5—13 m. 
(22/vit), 5 spec.; St. 64, 600 m. w. (23/vi1), 2 spec.; St. 66, 9—11 m. 
(23/vit), about 15 spec.; St. 89, 16—17 m., (31/vi1) 1 spec.; St. 104, 
7—20 m. (5/vii1), 4 spec.; St. 128, 700 m. w. (26/vim), 3 spec. 
In the Danmark Exped. 1912, p. 522—24, Pl. 43, and the “Tjalfe” 
Exped. 1912, p. 126—27, fig. 32, I have described a Mysis stage of a 
Spirontocaris larva, which I believe to have found again in my own 
collections. As will be seen from the foregoing list, it was found at a 
considerable number of stations, and in more than 3 different stages, 
none of which, however, entirely agrees with that I have previously 
described. That it is the same species, however, is fairly certain, inter 
alia on account of the spines on 4.—). abdominal segment; the resem- 
blance is also sufficiently evident when the two are compared. The stage 
previously described is, however, too large in proportion (abt. 10 mm.) 
and the spines on the telson there too long, the rostrum also, seen in Bum: 
file view, bemg somewhat slenderer at the base. 
I have drawn the youngest and the oldest stages; between these 
lie a number of intermediate forms, which are not easy to divide up into 
distinct stages. 
Youngest stage (Fig. 6). Length 6,5 mm. Fore end of the cara- 
pace and the rostrum are of exactly the same shape as in my figure 
of these parts in the oldest stage. The rostrum is comparatively long, 
very pointed, with a small wart above the base. There is a spine above 
the eye and also over and under the base of 2. pair of antennae. In 
ant. 1, the 2. joint of the peduncle is not yet separated from the first; 
this jomt has a spine on the under side of the distal end, just as im the 
later stages. In ant. 2, the length of the flagellum is equal to that of 
the squama; there is no articulation. The maxillipedes are of entirely 
larval character. P1—p2 have chelae and exopodites, but are altogether 
without articulation, as also p3—p5. Pleopode 1 is altogether lacking 
in some specimens; in others it appears in the form of a very small pro- 
tuberance. Plp 2—) are cleft but small, and without articulation. 
