CO 
as 
TAC 
outer edge spines and two apical ones. The third joint of the left exopodite bears one outer 
edge, one inner edge, and one apical spine (Plate XLI, fig. 10). 
This male is quite distinct from the male of Luczcutza grandis Giesbrecht, and from the 
species described as Laczcutea flavicornes by Brapy in the report on the ‘Challenger’ Copepoda. 
WOLFENDEN (1905), regards Lucecutia maxima, to be identical with Girsprecut’s Lucecutia 
grandis, and also with the Atlantic form recorded by himself as Luctcutia grandis. When full 
illustrations are published by Srever, the question of identity will probably be cleared up. In 
the meantime, I consider the male illustrated in this report to be that of Lactcutia maxima 
Steuer, and distinct from the male of Gimsprecut’s Lucicutia grandis. 
6. Lucicutia philyra nov. sp. Plate XL, figs. 10—18. 
Female — length 3,4 mm. 
Seen from above, the body appears oblong ovate, and moderately robust. The cephalic 
segment is moderately wide. It is without lateral processes. The rostral papilla is not visible. 
The last thoracic segment is much contracted posteriorly. The distal margins are narrowly rounded. 
Viewed from the side, the last thoracic segment is rather truncate at the distal end, and the 
posterio-ventral margin is rounded (Plate XL, fig. 12). The rostral filaments are long and slender. 
The abdomen is composed of four segments. The combined length of the abdomen and 
furca is contained nearly twice in the total length of the cephalothorax, from the frontal margin 
to the distal end of the last thoracic segment. The genital segment is slightly longer than the 
combined length of the next two segments. The dorsal surface of the segment is nearly straight. 
The ventral surface is much inflated. The second and fourth segments are of nearly equal length. 
The third segment is much shorter than the third or fourth segments. The furcal joints are 
six times longer than broad. Each furcal joint is as long as the combined length of the last 
three abdominal segments and is furnished with one outer edge setae. 
The antennules are twenty-five-jointed, and extend slightly beyond the end of the furca. 
The last joint is equal to about one-third of the length of the second last joint. 
The antennae, mandibles, maxillae and maxillipedes are nearly similar to those of 
Lucicutia bicornuta. 
The exopodites and endopodites of the five pairs of feet are three-jointed. The inner 
distal spine on the second joint of the exopodite of the fifth pair is moderately slender. It is 
much attenuated from the middle to the apex. Its length is contained rather more than one 
and two-third times in the length of the third joint. The terminal spine on the exopodite of 
the fifth pair is distinctly longer than the third joint (Plate XL, fig. 18). 
Male unknown. 
This species has a certain amount of resemblanee to Lwczcutia longicornis, but can 
readily be distinguished from it by the shorter genital segment, and by the length of the 
furcal joints. 
Occurrence. — One specimen was obtained from the plankton collected with the 
HENSEN vertical net at Station 118, 900 metres to the surface. 
128 
