Zand, Fresh- Water, and Marine Crustacea. 117 



20. Cranyon Allmani, Kinahan. 



1857. Crangon Allmanni, Kinahan, Proc. Nat. Hist. Soc. Dublin, 

 vol. iv. p. 80. 



Habitat. — Moderately common in the deeper parts of the 

 estuary ; it is also obtained occasionally in shallow water 

 inshore. In 1862 Kinahan instituted a new genus (Steiro- 

 crangon) for this species, but subsequent authors do not 

 consider the characters on which the new genus is founded 

 as sufficient to separate it from Crangon. 



21. Crangon nanus, Kroyer. 



1842. Crangon nanus, Kroyer, Naturh. Tidsskr. (ser. i. ), vol. iv. p. 231. 

 1853. ,, bispinosa, Bell, op. cit., p. 268. 



Habitat. — Taken near the Bass Eock (Metzger, German 

 Exploring Expedition, 1872). I have obtained it in mid- 

 channel east of May Island, off Prestonpans, off the west 

 side of Inchkeith, and in Largo Bay. 



22. Crangon trispinosus, Hailstone. 



1835. Pontophilus trispinosus, Hailstone, Mag. Nat. Hist., vol. viii. 



p. 261, fig. 25. 

 1853. Crangon trispinosus, Bell, op. cit., p. 265. 



Habitat. — Firth of Forth, not common (Mihi). 



23. Crangon neglectus (G. 0. Sars). 



1882. Cheraphilus neglectus, G. 0. Sars, Chr. Vidensk. Forhandl., 

 p. 45, pi. i. fig. 7. 



Habitat. — Dredged in Largo Bay, 1890, rare (cf. Ninth 



F. B. Rept., pi. iii., p. 309). 



24. Crangon fasciatus, Eisso. 



1816. Crangon fasciatus, Risso, Hist. Nat. Crust, de Nice, p. 82, 

 pi. iii. fig. 5. 



Habitat. — Off Musselburgh, September 1891, rare (cf. 

 Ann. Scot. Nat. Hist., 1902, p. 228). 



Family Nikid^e. 

 Genus (11) Nika, Eisso, 1816. 



25. Nika edulis, Eisso. 



1816. Nika edulis, Risso, Crust, de Nice, p. 85, pi. iii. fig. 3. 

 Habitat. — Taken at the mouth of the estuary by tow-net, 

 rare. 



