Gt Fishery Board for Scotland. 
curved and spiniform, on its upper distal angle; the third joint is 
very short, but the fourth is elongated, stout, and somewhat gibbous 
at the proximal end, and considerably narrowed towards the distal 
extremity ; the end joint is very small and bears two or three 
moderately long and slender fpical spines; the penultimate joint has 
its upper margin densely clothed with setee (Pl. IL., fig. 7). 
Mazxillee.—The first, second, and third pairs of maxille are all 
somewhat similar to the same appendages in Cypridina mediterranea, 
and differ from them only in some minor details. The third pair is 
provided with four not very clearly-defined lobes, and on the outside 
of these is a small sub-triangular lamina, with its distal margin 
boldly rounded and densely fringed with feathered sete (Pl. IL, 
fig. 10). 
The post-abdomen is also similar to that of the species mentioned. 
Its armature consists of eleven spines; the apical one is of consider- 
able length, while the others become gradually shorter; the margins 
are all fringed with denticles of a similar kind (PI. II., fig. 12). 
The Vermiform Appendages.—These, which are of great length, are 
rather slender; the head is wedge-shaped and pointed, and the edges 
of the lips of the jaw-like apex are fringed with minute spinules. 
These appendages are also furnished at the distal end, and especially 
near the apex, with numerous long slender bristles such as are usually 
found on these organs. 
Habitat—Collected by the ‘‘ Goldseeker” in August 1910, in Lat. 
08°43 N., Long. 9°6 W., between 90 and 95 miles W. by N. of 
the Butt of Lewi is, Outer Hebr ides, at a depth. of about 1448 meters 
(over dg fathoms). I have only seen one specimen. 
acods have been obtained at various times, 
usually ‘tolerably deep water, but there has apparently been no 
record of their occurrence hitherto off the West Coast of Scotland. 
The genus Gigantocypris was instituted by Professor G. W. Miiller 
in 1895 to include some large Ostracods collected by the U.S. Fish | 
Commission steamer “Albatross” while carrymg on dredging 
operations off the West Coast of Central America. Two species were 
described—G. agassizit and G. pellucida, and the specimen recorded 
here seems to agree fairly well with the latter. Dr. G. H. Fowler, in 
his account of the Ostracoda obtained from collections made by 
H.M.S. ‘“ Research” in the Bay of Biscay in 1900,* reports the 
occurrence of two examples of G. pellucida, one of which —a perfect 
specimen—measured about 13 mm. Both specimens were obtained 
at considerable depths. In recording these specimens Dr. Fowler 
remarks—“‘] regard it, however, as possible that pellucida is the 
penultimate stage of agassizw.” 
G. agassizit is apparently a much larger form than the other ; Dr. 
Miiller states that ‘‘ Die Thiere erreichen eine Linge von 23 mm., 
bei eine Héhe von 19:5, und eine Breite von 18 mm.” 
Gigantocypris appears to have a wide distribution, for, besides the 
occurrences mentioned above, Professor Chun, in his account of the 
Valdivia Expedition, also records the capture of similar specimens in 
the Atlantic and Indian Oceans, and the Rev. T. R. R. Stebbing, in 
* Biscayan plankton collected during a cruise of H.M.S. ‘‘ Research,” 1900 ; 
Part XII. Ostracoda. Trans. Linn. Soc, London, Ser. 2, Zool., Vol. x., p. 257 
(1909). 
