208 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 
3867; 4009-4011; 4086; 4580; 4583; 4585; 4588; 4590; 4592; 4605; 
4607; 4611; 4618; 4615; 4634; 4635; 4638; 4640; 4644: 4646; 4648 ; 
4650 ; 4663 ; 4665 ; 4667; 4671; 4673; 4676; 4706-4708 4713-4716; 4719; 
4723 ; 47305 47313 4734; 4757; 4758; 4760; 4765 ; 4785 ; 4793; 4806; 
4926; 4952; 5030; 5120; 5125 ; 5129; 5133; 5134; S155 5 oldos 
5180; 5185 ; 5186; 5190 ; 5208 ; 5993 ; 5224-5299; 5231-5234; 5240; 5246; 
5262; 5263; 5287; 5319; 5320; 5838; 5342; 5896; 5399; 5415; 5422; 
5424; 5434; 5487; 5451; 5489; 5553; 5595; 5601; 56115; 5633; 5672 ; 
H. 2700; H. 2701; FijiIslands. As this list plainly shows, the above is 
the most widely distributed species of the genus in the Albatross 
plankton. It appears in all the lists except that of the Szboga plank- 
ton and is nearly always stated to be abundant. 
EUCALANUS BUNGII Giesbrecht 
Eucalanus elongatus var. bungii GirsBRECHT, Fauna und Flora des Golfes von 
Neapel, monogr. 19, p. 149, 1892. 
Stations 5120; 5130; 5228; 5231; 5386. After a careful study of the 
varieties of Hucalanus elongatus in the northeastern Pacific, Dr. Mar- 
tin W. Johnson (1938, p. 167) decided that two of them were worthy 
of being elevated to the rank of species. Since he found the males of 
both varieties and they differed specifically from each other and from 
the typical elongatus male, his claim seems valid. This is the first of 
the two varieties and is distinguished by an acute triangular forehead 
in the female and by the details of the fifth legs in the male. A dozen 
specimens were examined in sufficient detail to identify them and prob- 
ably others could be found. 
EUCALANUS CRASSUS Giesbrecht 
Bucalanus crassus QIESBRECHT, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sem. 2, p. 
333, 1888; Fauna und Flora des Golfes von Neapel, monogr. 19, pp. 132, 151, 
pl. 4, fig. 9; pl. 11, figs. 8, 10, 15, 17, 21, 22, 29, 38, 35, 38; pl. 35, figs. 4, 20, 26-28, 
1892. 
Stations 26; 27; 65; 78; 3829; 4673; 4765; 4926; 5129; 5134; 5175; 
5180; 5185; 5186; 5223; 5225; 5226; 5228; 5299; 5238; 5319; 5492; 
5553 ; 5595; 5611. This species was also found at 5 Monaco, 32 Siboga, 
and 384 Carnegie stations, and so it may be deemed to be well 
distributed. 
EUCALANUS ELONGATUS (Dana) 
Calanus elongatus Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 18, 1849; 
United States Exploring Expedition, 1838-1842 (Wilkes), vol. 14, pt. 2, 
Crustacea, p. 1079, 1853; pl. 75, fig. 1 a-n, 1855. 
Stations 1; 15; 16; 25; 27; 31; 41; 43-45 ; 48; 49; 51; 52; 57; 65; 66; 
Ws ias 76-18; 80; 3382 : 3412; 3602; 3878; 3901; 4010; 4574; 4580; 
4613; 4634; 4635 ; 4640; 4644; 4648; 4663; 4667; 4671; 4676; 4679; 
