118 Proceedings of the Eoyal Physical Society. 



Family Hippolytid.e. 

 Genus (12) Hippolyte, Leach, 1813. 



26. Hippolyte varians, Leach. 



1813. Hippolyte varians, Leach, Edin. Encycl., vol. vii. p. 432. 



Habitat. — In shore pools (Howden). Frequent in tidal 

 pools west from Granton. Off' the west side of May Island. 

 H. fascigera, Gosse, which is now considered to be only a 

 form of H. varians, has been taken at Cramond Island at the 

 edge of low-tide. 



Genus (13) Spirontocaris, Spence Bate, 1888. 



27. Spirontocaris spinus (Sowerby). 



1805. Cancer spinus, Sowerby, Brit. Miscellany, p. 47, pi. xxiii. 

 1853. Hippolyte spinus, Bell, o}]. cit., p. 284. 



Habitat. — Common in the littoral and laminarian zones 

 (Leslie and Herdman). I have occasionally obtained speci- 

 mens in different parts of the estuary. S. securifrons 

 (Norman), which differs chiefly in having the dorsal aspect 

 of the abdomen even instead of the third segment terminat- 

 ing in a strong posterior dorsal tooth, is also occasionally 

 obtained, but is regarded as a variety of the other. 



28. Spirontocaris pusiohis (Kroyer). 



1842. Hijjpolyte pusiola, Kroyer, Monogr. Fremst. of Hippol. Nord. 

 Arter,Vid. Sel. naturvid. og matliem. Afh., ix Deel., p. "319, 

 tab. iii. figs. 69-73. 



Habitat. — Newhaven, from the fishermen's lines (Hender- 

 son). I have dredged ^S'. pusiolns west of Queensferry, in 

 the neighbourhood of Inchkeith, off Musselburgh, and off 

 St Monans. This is probably the species referred to by 

 Dr Howden as being common off Crail.^ 



29. Spirontocaris Cranchii (Leach). 



1815. Hippolyte Cranchii, Leacli, Malacol. Brit., p. 38, figs. 17-21. 



Habitat. — Rocks off Broxmouth, near Dunbar (F. M. 

 Balfour; in Leslie and Herdman's, Invert. Fauna of Firth of 

 Forth, p. 106). 



1 Cf. A. White, Hist, of Brit. Crust., p. 122. 



