262 
Part III. — Tenth Annual Report 
Lichomolgus arenicolus, Brady. 
1872. Boechia arenicola, Brady, 'Nat. Hist. Trans. Northumb. 
'and Durham,' vol. iv. p. 430. 
1880. Liclwmolgus arenicolus, idem., 'Brit. Copep.,' vol. iii. p. 46, 
pi. lxxxvii. fig. 1-7. 
Habitat. — Off St Monans, Firth of Forth. One specimen only of this 
fine and distinct species was obtained. It occurred among material dredged 
in about 14 fathoms water ; bottom, clean sand. 
Cyclopicera gracilicauda, Brady. 
1880. Cyclopicera gracilicauda, Brady, loc. cit., vol. iii. p. 58, pi. 
lxxxiii. figs. 1-10. 
Habitat. — Off St Monans, Firth of Forth. Several specimens were 
obtained among dredged material. This was readily recognised by the 
slender abdomen and long caudal stylets. It appears to be a somewhat 
rare species. 
PARASITA. 
Family Chondracanthidj;. 
Chondr acanthus zei, Delaroche. 
1811. Chondr acanthus zei, Delaroche, ' Nouv. Bull, des Sc. de la 
' Soc. Philm.,' vol. ii. p. 270, t. 2, fig. 2. 
1850. Chondracanthus zei, Baird, 'Brit. Entom.,' p. 327, pi. xxxv. 
fig. 1. 
Habitat. — On the gills of a 'John Dory' {Zeus faber), caught in the 
vicinity of Largo Bay, Firth of Forth. Baird (loc. cit.) gives a very 
characteristic figure of this Chondracanthus. The arrangement of the 
numerous elongate appendages (they can scarcely be called spines as 
Baird describes them) which surround the parasite is such as to impart to 
it a somewhat handsome appearance. There does not appear to be any 
previous record of this species from the Firth of Forth. 
Chrondraeanthus merluccii, Holten. 
From the skin of the branchial cavity of a Hake. Merlucius vulgaris, 
landed at Newhaven, February 1885. 
AMPHIPOD A. 
Family Gammarid^e. 
Cressa dubia (Spence Bate) PI. VIII. fig. 13. 
1855. Montagua dubia, Spence Bate, 'Report Brit. Assoc.' 
1857. Danaia dubia, idem., 'Ann. and Mag. Nat. Hist.,' xix. p. 
137. 
1870. Cressa schiodtei, Boeck, ' Crust. Amph. bor et Arct.' 
Habitat. — From a large ' root ' of Laminaria brought up in the trawl- 
net at Station V., Firth of Forth, in February 1892. Several specimens 
were obtained. From what I can learn regarding this species it appears 
to be somewhat rare in the British seas. It was first obtained by Spence 
Bate among trawl refuse ' from near the Eddystone Lighthouse/ David 
Robertson records having taken it ' off stones and nest of Lima hians 
