356 Records of the Indian Museum. (Vor. Ville 
Genus Undinula, Scott. 
Undina, Brady, nom. preocc. 
1. Undinula vulgaris (Dana). 
Occurrence: Localities B, D, HE, F, G, H, K, L, M. O, P. 
Although widely distributed over the whole of the Middle and 
South Moscos regions, it was much more abundant over the region 
to the S. and E. of the South Moscos South Island. 
In size it was as arule rather below the average as given by 
Giesbrecht and Schmeil (/.c., p. 17), varying from I'9 to 2°3 mm. 
in length. A few specimens were obtained having the double spine 
on the left side of the last thoracic segment as figured by Gies- 
brecht (Calanus vulgaris: F. u. Fl. Gulf. Neap., xix, pl. 7, fig. 28). 
2. Undinula vulgaris (Dana) var. plumulosus (Wolfenden). 
Calanus vulgaris, Wolfenden, Notes on the Collection of 
Copepoda. The Fauna and Geography of the Maldive and 
Laccadive Archipelagoes, vol. ii, p. 994, pl. xcvi, figs. 21 
alia: 2z2 
Occurrence: Localities K, L, Q. 
This variety appears to be of comparatively infrequent 
occurrence, only four specimens being obtained. These, with a 
single exception from Hinzé Basin, were obtained in the same 
locality as Canthocalanus pauper var. plumulosus. They show 
the same irregularity in the number and arrangement of the 
plumose setae. 
3. Undinula darwini (Lubbock). 
Occurrence : Localities O and P. 
This species appears to be very rare in the different areas 
investigated and very few specimens were obtained; all those 
examined were, with one exception, females. 
4. Undinula caroli (Giesbrecht). 
Calanus caroli, Giesbrecht, Atti. Acc. Lincei Rend., ser. 4, 
vol. 4, Sem. 2, p. 331 (1802):.—F. uP Weapel vol ery, 
De OL, toys 1350: 
Calanus caroli, Wolfenden, Notes on the Collection of Cope- 
poda. The Fauna and Geography of the Maldive and 
Laccadive Archipelagoes, vol. i1, p. 994. 
Occurrence: Localities B, C, E, F, G, H, K, L, M, P, Q. 
A large number of females were obtained, which agree in 
every particular with the description of the specimens obtained 
