202 
5. PHiLoMEDES LoNnGicoRNIs, Liljeborg. (Pl. LXXI. figs. 5, 
5ia5'5 8; 5.e.) 
Carapace-valves of a squarely-ovate shape, somewhat compressed, 
and covered with numerous, very small punctations. The notch at 
the upper extremity is wide and deep, and the beaks are obtuse and 
fringed along the margin. The posterior extremity is square-shaped, 
with a slight projection at the anterior corner. The superior an- 
tenne are provided with two very long sete. When in fluid, there 
is a small, roundish, black mark visible on each of the valves, near 
the centre, but a little nearer the anterior extremity. This species 
was taken in the towing-net, in Whale Sound, by Dr. Sutherland in 
1852, who remarks in his notes of the voyage that the animals often 
come springing up from the bottom to the surface of the vessel in 
which they were placed after their capture; their motions then 
ceased, and they again sank to the bottom. It was described by me 
about the end of the same year under the name of Cypridina isabella, 
after the ship in which Dr. Sutherland was, and which at the time 
was engaged in the unsuccessful search after Sir John Franklin. 
My description, however, remained in MS., and my attention was 
some time afterwards called to the work of W. Liljeborg on the 
‘ Entomostraca of Sweden,’ published in 1855. At page 176 he de- 
scribes an animal which I consider identical with this, found by him 
on the coast of Sweden, and which is figured in plate 26, figs. 4, 5. 
From its possessing two very long setze on the superior autennee, and 
wanting the appendage on the second pair of maxillz, he has formed 
a distinct genus for it under the name of Philomedes. 
Length 13 line; breadth 3 line. 
Hab. Whale Sound, lat. 77° N., long. 71° 37! W. (Dr. Suther- 
land). 
EXPLANATION OF PLATE LXXI. 
Fig. 1. Cypridina albo-maculata. 1a. Ventral view. 1 4. One of the white spots, 
magnified 15 diameters. 1c. Portion of the surface, magnified 75 dia- 
meters. 1d. Dark portion of lucid spot. 
Fig. 2. Cypridina godehevi. 2a, Ventral view. 24. Portion of surface, magni- 
fied 75 diameters. 2c. Lucid spot, magnified 75 diameters. 
Fig. 3. Cypridina ovum. 3a. Ventral view. 3. Portion of surface, magnified 
75 diameters. 
Fig. 4. Cypridina norvegica. 4a. Ventral view. 40. Interior of valve. 4e. 
Lucid spot, magnified 75 diameters. 4d. Portion of surface, mag- 
nified 75 diameters. 
Fig. 5. Philomedes longicornis. 5a. Ventral view, 54. Portion of surface, mag- 
nified 75 diameters. 5c. Lucid spot, magnified 75 diameters. 
Fig. 6, Estheria compressa. 6a. Ventral view. 60, Portion of surface between 
the ribs, magnified 75 diameters. 
