COPEPODS OF THE WOODS HOLE REGION 157 



ramus fused with the anal segment, the left one distinctly sepa- 

 rated; endopod of fifth legs less than half as long as exopod and 

 ending in two acute equal processes; exopod 1-segmented, squarely 

 truncated distally and armed with three unequal terminal setae, with 

 a smaller one on the outer margin. Total length, 1.6-1.75 mm. 



Male. — Posterior corners of fifth segment shorter; urosome 5-seg- 

 mented and symmetrical; right first antenna geniculate, the swollen 

 portion very short and nearly spherical ; fifth legs each 4-segmented, 

 the left one tipped with four slender spines of equal length; hand of 

 chela on right leg with a long conical thumb, but without any 

 process between the thumb and finger, so characteristic of Pontella. 

 Total length, 1.5-1.65 mm. 



Remarks. — This species may be recognized by the comparative 

 width of the body, the symmetry of the fifth segment and the uro- 

 some, and the details of the fifth legs in both sexes. It has never 

 before been reported from American shores and is probably an 

 inhabitant of the warmer portions of the oceans. 



Genus PONTELLOPSIS Brady, 1883 



Head separated from the first segment, without cuticular lenses 

 and lateral hooks ; fourth and fifth segments fused with pointed pos- 

 terior processes, asymmetrical in the male ; urosome of female 1- or 2- 

 segmented, of male 5-segmented, asymmetrical in both sexes ; exopods 

 of first four pairs of legs 3-segmented; endopod of first legs 3-seg- 

 mented, of second, third, and fourth legs 2-segmented; fifth legs 

 biramose in female, uniramose in male; right antenna geniculate. 

 One species found here. 



PONTELLOPSIS REGALIS (Dana) 

 FiGIIBE 107 



Pontella regalis Dana, Proc. Amer. Acad. Arts and Sci., vol. 2, p. 31, 1849. 

 Monops regalis Gibsbrecht, Fauna uud Flora des Golfes von Neapel, vol. 19, 

 p. 486, pis. 1, 26, 41, 1892. 



Occurrence. — One male in surface tow on Georges Bank, Septem- 

 ber, 1874; three females in surface tow, Stations 2092, 2711, Alha- 

 tross; four males and females from trawl wings, Station 2195, 

 Albatross.^ south of Nantucket; one male, surface tow. Gulf Stream 

 south of Marthas Vineyard. 



Distribution. — Mediterranean, tropical portions of Atlantic, Pa- 

 cific, and Indian Oceans (Giesbrecht) ; southern Atlantic (Brady) ; 

 Malay Archipelago (Cleve, A. Scott) ; middle Atlantic (Lubbock) ; 

 Malta (Thompson) ; Atlantic (Wolfenden) ; Bay of Bengal (Sew- 

 ell) ; Messina (Thompson and Scott) ; Adriatic (Pesta). 

 71937—32 12 



