Land, Fresh- Water, and Marine Crustacea. 325 



115. Ameira pusilla, T. Scott. 



1903. Ameira pusllla, T. Scott, Twcuty-lirst F. B. Rcpt., pt. iii. 

 p. 114, pi. V. ligs. 1-10. 



Ha.h. — This, which appears to be the smallest member of 

 the genus, was taken sparingly, in shallow water, off Mussel- 

 burgh ; it has not, so far, been noticed anywhere else. 



116. Ameira amhigua, T. Scott. 



1903. Ameira amhigua, T. Scott, op. cit., p. 114, \>\. v. figs. 11-19. 

 Hah. — Taken off Mussel burgli, in shallow water; appar- 

 ently rare. 



117. Ameira elegans, T. Scott. 



1905. Ameira elegans, T. Scott, Twenty-third F. B. Kept., pt. iii. 

 p. 144, pL X. figs. 18, 19; pi. xi. figs. 1-9. 



Ifah. — Collected with hand-net in pools on the shore near 

 low-water, north-west from Dunbar, and also in a shore 

 gathering collected the same year near Musselburgh. 



Genus (52) Robertsonia, G. S. Brady, 1880. 



118. Bobertsonia tenuis (G. S. Brady and Eobertson). 



1876. Edinosoma tenue, Brady and Robertson, British Assoc. Kept. 



for 1875, }). 196. 

 1880. Rohertsonia tenuis, Brady, Brit. Copep., vol. ii. p. 25, pi. xli. 



figs. 1-14. 



Hah. — This species, which was first noticed in material 

 dredged off North Berwick in 1887, appears to be sparingly 

 distributed throughout the estuary. 



Genus (53) Heteropsyllus, T. Scott, 1894. 



119. Heteropsyllus curticaudatus, T Scott. 



1894. Heteropsyllus curticaudatus, T. Scott, Twelfth F. B. Kept., 

 pt. iii. p. 252, pi. viii. figs. 27-34; pi. ix. fig. 1. 



Hah. — Dredged off Musselburgh and near Aberdour ; 

 frequent. This species, though extensively distributed, 

 having been observed in the Firth of Clyde and on the south 



