264 Port IL1].—Twelfth Annual Report 
Family LevooTHoIpz. 
Genus Leucothoé, Leach (1814). 
Leucothoé lilljeborgii, Boeck, 1860. 
1860. Leucothoé Lilljeborgti, Boeck, Forhandl. Skand. Naturt. 
8 de Mode. 
1888. Leucothoé furina, Chevreux (non furina Savigny) (12), p. 
1889. Leucothoé¢ umparicormis, Norman (24), p. 114, pl. x. figs. 1- 
1892. Leucothoé incisa, Robertson (27), p. 23. 
Habitat.—Vicinity of the Bass Rock. Rare. This species is readily 
recognised by the form of the last pair of epimeral plates of the meta- 
some. 
9. 
4. 
Family PARAMPHITHOIDA. 
Genus Paramphithoé, Bruzelius (1859). 
Paramphithoe monocuspis, G. O. Sars. 
1893. Paramphithoé monocuspis, G. O. Sars (29), p. 351, pl. exxiii. 
fig. 2. 
I record this species for the Firth of Forth on the authority of Dr A. 
M. Norman. It wassent to him by Dr Henderson in 1884. Some time 
ago, when looking over a number of Forth Amphipoda, I observed one of 
the specimens with a single dorsal cusp, which, on further examination, 
was found to resemble this species fairly well: it was, however, laid aside 
for further study. 
Paramphithoé assimilis, G. O. Sars. 
1882. Paramphithoé assimilis, G. O. Sars (28), p. 99, pl. v. fig. 1. - 
1888. Paramphithoé assimilis, D. Robertson (26), p. 94. 
1893. Paramphithoé assimilis, G. O. Sars (29), p. 352, pl. cxxiv. 
fig. 1. 
Halbitat.—Found adhering to some zoophytes dredged between the 
Island of Inchkeith and the May. The Forth specimens belong to Param- 
phithoé assimilis, G. O. Sars, as described in ‘Crustacea of Norway,’ and 
not to Pleustis glaber, Boeck (Parapleustis glaber in ‘Crustacea of 
‘ Norway,’ p. 358). 
Family [pHimEepIps. 
Genus Jphimedia, Rathke (1843). 
Iphimedia minuta, G. O. Sars. 
1882. Iphimedia minuta, G. O. Sars (28), p. 100, pl. v. fig. 2. 
1892. Iphimedia minuta, D. Robertson (27), p. 23. 
1893. Lphimedia minuta, G. O. Sars (29), p. 379, pl. exxxiii. fig. 1. 
Habitat.—North end of Inchkeith, and in other parts of the Forth. 
This species has been known to me for aconsiderable time as quite distinct 
from Iphimedia obesa. Though not a common species it has been 
obtained at several places within the estuary. 
Family ATYLIDZ. 
Genus Apherusa. 
Apherusa borealis (Boeck). 
1893. Apherusa borealis, G. O. Sars (29), p. 441, pl. exv. fig. 2. 
Habitat.—In various places within the Forth area, between the Island of - 
Inchkeith and the May, as well as outside of the May Island. Sometimes 
