270 Records of the Indian Museum. [Vor. Vl 
7. Labidocera minuta, Giesbrecht. 
Occurrence : Localities A[ Be CD, EG ol Ne @ ce: 
This species, like L. acuta, was common in localities A to E ; 
in the remaining ones, however, it was comparatively rare. 
8. Labidocera pectinata, Thompson and Scott. 
PiP xxiii, ies O, 1. 
L. pectinata, Thompson and Scott, Ceylon Pearl Oyster 
Fisheries. (Suppl. Report vii), vol. i, p. 252, pl. i, figs. 
I0-—1I4, 1903. 
L. similis, Cleve, Report on Plankton collected by Mr. 
Th. Wulff. Avkiv for Zoologi, vol. i, p. 378, pl. to, figs. 
4—6, 1903-04. 
2 A single specimen was obtained in locality Q. This 
species was first described by Thompson and Scott from the Pam- 
ban Pass, Ceylon : almost simultaneously another account was pub- 
lished by P. T. Cleve, who had found it in the plankton off Kara- 
chi. ‘These two descriptions, while agreeing in all main essentials, 
differ slightly in certain details. Cleve’s specimens presented a sym- 
metrical furca, and on the genital segment a large dorsal apophy- 
sis and a single lateral spine, whereas in the specimens from Cey- 
lon the furca is slightly asymmetrical and the genital segment has 
two lateral spines and is without the apophysis. Another point 
of difference, judging from the figures given, is in the number of 
spines on the endopodites of the 5th pair of legs. These are more 
numerous in the specimens from Ceylon. In the single specimen 
that I obtained in Hinzé Basin this feature was still more marked, 
though in all other respects it exactly corresponded with the Cey- 
lon specimens. It would appear that we have here an example of 
continuous variation, the further to the east the locality in which 
the species is obtained, the more numerous become the spines of 
the endopodites of the 5th pair of legs. 
Genus Pontella, G. Brady. 
I. Pontella andersoni, Sewell. 
Vide Ante. 
A single male and a single damaged female were obtained in 
locality D. 
2. Pontella danae, Giesbrecht, var. ceylonica, Thompson 
and Scott. 
P. danae var. ceylonica, Thompson and Scott, Report on the 
Copepoda. Ceylon Pearl Oyster Fisheries and Marine 
Biology (Suppl. Report vii), vol. i, p. 252, pl. ii, figs. I—5. 
