﻿COI'KPODA 



103 



most a rather .smaller Mediterranean variety of this species", it seems ])r<)I)able lliat I-'arran's spec- 

 imens belong to the species described al)ove. The female of wliieh A. Scolt in tiie vSiboga Expe- 

 dition has given fignres and has identified with G. Kn/ppi\ is possihU- identical willi this species 

 (Size 57 mm.; lobe IV maxillipeds with 3 setae and frontal sjjine rather short), bnt the male is scarcely 

 so on acconnt of the different shape of Re dextr. pes V. Scott regards Esterly's G. brcvicornis (1906 

 p. 56 — 57) as identical with Ct. Kriippi, thongh the lamella of the maxillipeds has quite another shape, and 

 his G. clanis (pp.57 — 58) as the male of this species; in the latter supposition he is possibly right, 

 but it is in ans- case different from the male from the Atlantic. 



If G. Knippi and major of the different authors are identical, its distribution is wide (Indian 

 Ocean, South and North Atlantic and the Mediterranean); if onl\' the localities which certainh- belong 

 to the species described here are taken into consideration its range encompasses the North East 

 Atlantic as far south as 50° L. N. and as far north as 65° L. N.; it is distributed as far west as 

 Denmark Strait (E. W. 28"), and as far east as the Fteroe-Iceland channel (L. W. 4°). All records show 

 that it is a deep sea species. 



26. Gaetanus minor Farran. 

 (PI. Ill fig. 4a). 



1905. Gaetanus minor n. sp. Farran, p. ,VI. p'- V figs i — li. 



1906. — — Farran. Pearson, p. 14. 

 1908. — — — Farran, p. 37. 



igo8. — — — V. Bremen, p. 41, fig. 46. 



igo8. — — — Woltenden, p. 32. 



igog (jaetanus minor Farran. A. Scott, pp. 47 — 4S, pi. IX 



fi,t;s 1 - S, 

 igii — — — (miuinuis? n. sp.) Wolfeiuten, 



pp. 233- 234, text-figs 20 a— e. 



Description. i% Size: 2'3 mm., anterior division I'Sg; urosome 0-44 mm. ^'arran's specimens 

 measured 24 mm. 



The short rostrum is undivided. The anterior division is 4-3 as long as the urosome. The 

 lateral spines reach the end of the genital somite (fig. 4 a). The genital somite is rather swollen below, 

 with a distinct receptaculum seminis. The caudal rami are almost as long as wide. The relati\'e 

 length of the abdominal somites and the furca is 20, 9, 8, 8 and 7. 



The antennulac reach just beyond the end of the genital somite; the measurements are prac- 

 tically as given by Farran, and the appendages are as in preceding species. The Re of the an/rninir 

 is scarcely 1-4 as long as Ri; the Ri I is twice as long as Re IT, which is again 2-6 as long as Re I, 

 and 1-6 .shorter than Re III. The Re II has the short Se 2 placed on a conical protuberance, but has 

 none for the more slender Se 3. The inaxilliilac differ from those of G. Kruppi by the 2 spinelike 

 Sp. of the Ei 2. The third basipodite of the inaxillipcds is i-i as long as the 2 first, and 27 as long 

 as the Ri; the second basipodite has, as stated by Wolfeudcu, a rounded lamellous process, and the 

 lobe IV has as usual 3 setae -(- a sensory lobe; the third basipodite has in a similar way as in G. iiiihs 

 Giesbr. (cf. Taf. 14 fig. 24) the inner margin produced into a rounded process which slopes most 

 gradually towards the base, and here bears the usual row of teeth. This process is distinct but much 

 lower in Cr. Kruppi\ and is only indicated in Gaid/iis. 



The terminal seta in the exopodite of pes II, which has 14 well separated teeth, is ri as 

 long as the Re I— II. The second ba.sipodite in the fourth pair of legs has 12 stiff pointed bristles 



