129 
one specimen were found: one female and one male, and in front of the female were lying 
seven ovisacs, behind it one; another specimen contained one female and one male. 
REMARKS. The genital area of the female in several respects (shape, chitinisation 
and arrangement of hairs) deviates much from all the other species. By the name given to 
this species I have commemorated Lieutenant-Captain Inspector C. Holboll, to whom the 
study of Greenlandish Malacostraca owes so much, and who more than half a century ago 
sent home rich collections of these animals. A considerable part of this material was worked 
out by H. Kroyer. In the writings of this author we also find interesting biological observa- 
tions by Holbdéll concerning Greenlandish species of Lysianasside etc. 
16. Sphzronella intermedia n. sp. 
(PL V, fig. 8a—3h.) 
FEMALE. The largest specimen is ‘89 mm. in length, -81 mm. in breadth and 
somewhat flattened; the specimen represented in fig. 3a is ‘57 mm. long and ‘47 mm. broad. 
The head in the adult specimen is well defined and rather small. The frontal margin provided 
with fine and close hairs (fig. 3d). The antennule moderately long, with long sete. The 
antenne much as in the three preceding species, but the basal joint equals in length one 
of the two following joints. The good-sized mouth with a rather broad border. The 
maxillule with well-developed additional branch. The basal joint of the maxilla without any 
process. The maxillipeds with a slender, naked basal joint, the three other joints all sepa- 
rated, the terminal joint has two short spines inside its point, and a single one on the out- 
side. The sub-median skeleton has a single, rather narrow list inside each maxilla; a trans- 
verse area in front of the basis of each maxilliped is covered with numerous tolerably long 
hairs; between the head and the trunk two chitinised transverse lists. The lateral margin 
of the head with a fringe of hairs. which off the maxillee and the maxillipeds spreads over 
a pretty considerable triangular area. The trunk very sparingly set with simple, rather 
short hairs, which are closest together behind the sides of the head; the trunk-lees distinct. 
The genital area (fig. 3e) large, quite as broad as the base of the head (fig. 3a), somewhat 
broader than long; the whole area forms a solid plate which is nearly heart-shaped, deeply 
incised in front and with a semicircular posterior margin. The genital apertures are some- 
what curved, but their direction is nearly parallel with the median line of the animal, and 
they are situated pretty near each other close behind the deep incision of the anterior margin 
of the plate. The plate is furnished with a number of irregularly scattered hairs, and the 
caudal stylets are situated close together at a good distance inside the posterior margin of 
the plate, a little behind the genital apertures. (In the illustration we also see the orifices 
of the receptacula seminis, which are marked by dotted lines.) 
17 
