212 U.S. NATIONAL MUSEUM BULLETIN 236 



there are some dispersed small spines on exopodite and baso- 

 endopodite. 



Color, as in female, faded. 



A female from locality 425, total length 0.60 mm., greatest diameter 

 0.20 mm., is remarkable by the extreme spinulosity of the legs and the 

 abdomen. The 1st exopodal segment of legs 2 to 4 has several coronulae 

 of strong spmules; the arrangement of the many spiQules on the 

 abdomen can best be judged from figures 76a,6. Setae 2 and 3 of furca, 

 which are greatly lengthened, are also swollen at the base, especially 

 the 2nd seta, where the swollen part is fairly long. The 5th leg does 

 not differ in any respect from the type described above (fig. 76c). 



A male specimen from locality 589, total length 0.60 mm., greatest 

 diameter 0.14 mm., has poorly developed spinules on legs and abdomen. 

 On the exopodite of legs 2-4 the spinules are restricted to the externa] 

 margin. On the abdominal somites spinules occur on somite 1 on 

 dorsolateral walls, on somites 2 and 3 as completely closed row along 

 distal border and on somite 5 along insertion of furca (figs. 786, 81c,e). 



Remarks. — The geographical distribution of Amphiascopsis cinctus 

 has been discussed by Lang (1948, p. 667). To the localities cited in 

 his paper the following can be added: Oresund Strait between Denmark 

 and Sweden (Dahl, 1948); the Helgoland area of Germany (Klie, 

 1950) ; the Dalkey area of County Dublin and Lough Ine of County 

 Cork, Ireland (Roe, 1958, 1960); and the Rovinj, Yugoslavia, area 

 on the Adriatic (Vatova, 1928). Pacific records are rather scarce: 

 in weed washings from Nancowry Harboiu- in the Nicobar Islands 

 (Sewell, 1940: 9 0.97 mm., cf 0.66 mm.) ; Kundugal Channel off the 

 Madras coast (Krishnaswamy, 1953a: 9 0.945 mm., as Amphiascopsis 

 havelocki) ; the pearl oyster banks off Ceylon (Thompson and A. Scott, 

 1903: 9 1-1.3 mm., cT 0.96 mm., as Dadylopusia ceylonica and D. 

 havelocki) ; in washings of invertebrates from 1595 m. and 13 m. depth 

 between Lucipara and Penju Islands in the eastern part of the Malay 

 Archipelago, and off the Aru Islands (A. Scott, 1909); and Lyttelton 

 Harbor in New Zealand (Brady, 1899 ; as Dactylopus hanseni). 



In the Ifaluk collection the species occiu-s both in washings of algae 

 and in sand samples; it forms a characteristic and fairly common 

 element of the reef fauna. 



