112 
The 3 specimens giving thus together a very distinet series 
of development, I think there is no doubt that they all belong to 
the same species. 
The relation to the host is not mentioned for any Dajid; the 
autliors only mention the place, where the parasite is fixed. The 
specimen from the „Tjalfe u St. 346 was, as shown in figs. 13-14, 
lixed on the hind part of the dorsal surface of the carapace of the Ser¬ 
gestes with the eephalon turned towards the abdomen of the host, 
just as H. Richards o n has figured Holophryxus Giar di and H. 
californiensis. The carapace of the Sergestes has dark holes from 
the mouth and pereiopoda of the parasite (see fig. 14); also lt 
may be seen, that the Holophryxus has 
removed its legs 2 or 3 times (together 
with its growth?). 
As the parasite is fixed quite super- 
ficially to the host, some very interesting 
questions arise. Does the parasite only 
live as long as the time between two cast- 
Hindpart of the carapace flf the skin of the ho st? Does i t 
J . prevent the host from casting the skin . J — 
the marks of the mouth r . 
and pereiopoda of To answev theSe ( l UeStl0nS 1S 1 lllte im ‘ 
Holophryxus (Richardt?), possible at the present moment. 
84. Holophryxus Acanthephyrse n. sp. (fig. lo [partly], lo 21). 
(St, 322) 60°07’N, 48° 26' AV, 2000 m. wire, 3—5—1909, 1 spec. (?) on 
Acanthephyra purpurea. 
As I have had but one single specimen, a doser examiuation 
and dissection was not possible; therefore the following description 
can not give all details. 
Length 22 mm., breadth 12,5 mm. 
The specimen is very like H. californiensis from California 
(H. Riehardson, Proc. U. S. Nat. Mus. vol. 33, 1908, p. 692-94, 
figs. 4—5). From Miss Richardson’s very short description and 
her indistinet photographic fig. it cannot with security be determ- 
