ENTOMOSTRACA OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 531 
Fam. PARACALANID&. 
Genus Paracalanus, Boeck, 1864. 
Paracalanus aculeatus, Giesbrecht. 
1888, Paracalanus aculeatus, Giesb., op. cit., p. 333. 
This Paracalanus was met with at eight stations in the North, and four in the South 
Atlantic, ranging from Stations 26 to 66, 14° 33’ N., 25° 9’ W., to 7° 9’ 8., 34° 30’ W. 
Genus Acrocalanus, Giesbrecht, 1888. 
Acrocalanus longicorns, Giesbrecht. 
1888, Acrocalanus longicornis, Giesb., op. cit., p. 332. 
A. longicornis occurred sparingly in the twenty-one samples collected between 
Stations 17 in the North and 95 in the South Atlantic, 20° 18’ N., 23° 22’ W., to 
a2 1d S., 47° 380’ W. 
Genus Caloculanus, Giesbrecht, 1888. 
Calocalanus pavo (Dana). 
1849, Calanus pavo, Dana, Proc. Amer. Acad., vol. 11. p. 13. 
This Calanoid was observed in gatherings from twenty-two stations, ranging from 
7 to 94, 26° 23’ N., 20° 20’ W., to 30° 25’ S, 45° 45’ W., but was not very common in 
any of them. 
Calocalanus plumulosus (Claus). 
1863, Calanus plunulosus, Claus, Die freilebeniten Copepoden, p. 174, pl. xxvi. figs. 15, 16. 
The only gathering in which C. plumulosus was observed was collected at Station 
meted 15’ N., 25° 9’ W. 
Genus Clausocalanus, Giesbrecht, 1888. 
Clausocalanus arcuicornis (Dana). 
1849, Calanus arcuicornis, Dana, op. cit., p. 52. 
This was one of the more common species in the Scotia collections. It was observed 
in gatherings of plankton from thirty-one stations, extending from Station 7 in the North, 
to Station 112 in the South Atlantic, 26° 23’ N., 20° 20’ W., to 46° 03’ 8., 56° 30’ W. 
Clausocalanus furcatus (G. S. Brady). 
1883, Drepanopus furcatus, Brady, Report ‘“ Chall.,” “Copep.,” p. 77, pl. iv. figs. 1 and 2, pl. xxiv. 
figs. 12-15. 
In the Scotia collections this species appeared to be much rarer than the last. It 
was observed in gatherings from only four stations, viz., 12, 13, 59, and 90, 22° 19’ N., 
22-07 W., to 26° 50’ S., 42° 20’ W. 
