Part III. — Eighth Annual Report 
little for about three quarters of tho length, when the sides converge and 
form posteriorly a somewhat wedge-shaped extremity. The anterior end 
is broadly rounded, inclining to angular in the middle, where the valves 
meet; greatest breadth equal to height; height about J the length. 
Surface of the valves smooth, but having a slightly resinous appearance. 
Length, '35 mm. 
Habitat. — Off St Monance, not very rare. Specimens of this form hive 
been dredged on several occasions at this place, depth 12 to 14 fathoms, 
bottom clean gravel and sand. Tho animal has not yet been made out, 
the species is therefore for the present doubtfully referred to Cyt/ure. 
Cijtheridea torosa (Jones). 
Cytheridea torosa, Brady, op. cit., p.- 425, pi. xxviii. figs. 7-12; 
pi. xxxix. fig. 5. 
Cytheridea torosa, Brady and Norman, op. cit., p. 175. 
Habitat. — Brackish water pools by the shore at Aberlady Bay, common. 
Associated with Cytherura gibba (Miiller), Candona Candida (Miiller), 
Trod lamina inflata (Mont.), ffdptophragbiium cawtriense, etc., Granton 
Harbour (Robertson). I have this species also from Montrose Basin and 
from Orkuey ; it is a brakish- water species. The above are the only records 
of its occurrence on the east of Scotland. 
Krithe bartonensis (Jones). 
Krithe bartonensis, Brady, op. cit., p. 432, pi. xxxiv. figs. 11-14; 
pi. xl. fig. 5. 
Krithe bartonensis, Brady and Norman, op. cit., p. 179. 
HaUtat. — Near the mouth of the Estuary, moderately common. This 
species is new to the east of Scotland. 
Cytherura. gibba (Miiller). 
Cythere gibba, Miiller, Entomostraca, p. 66, pi. vii. figs. 7-9, $ 
(1785). 
Cytherura robertsoni, Brady, op. cit, p. 444, pi. xxxii. figs. 
16-18, ?. 
Cytherura gibba, Brady and Norman, op. cit, p. 190 (non 
Cytherura gibba, Brady, Mon. Rec. Brit. Ostrac.) 
Habitat. — Largo Bay, rare (dead), frequent in brackish-water pools at 
Aberlady Bay (living); Granton Harbour (Robertson); it occurs also in 
Montrose Basin. This is a brackish-water species, and is sometimes ob- 
served in moderate abundance where the water is only slightly saline. Its 
occurrence in Largo Bay and in Granton Harbour is probably accidental. 
Cytherura cornuta, Brady. # 
Cytherura cornuta, Brady, op. cit, p. 445, pi. xxxii. figs. 12-15. 
Cytherura gibba, idem ibidem, p. 444, pi. xxxii. figs. 68-70, $ (non 
Cytherura gibba, Miiller). 
Cytherura afflnis, idem ibidem, p. 443, pi. xxxii. figs. 17-21, £ 
var. (non Cy therm affinis, G. O. Sars). 
Cytherura lineata, idem ibidem, p. 443, pi. xxxii. figs. 30-34 (jun.). 
Cytherura cornuta, Brady and Norman, op. cit., p. 192, pi. xviii. 
figs. 21, 22. 
Habitat — Vicinity of Phidra, off Musselburgh, and Burntisland, but 
not common. Though of frequent occurrence on the west coast, I do not 
find any previous record of it from the east coast of Scotland. 
Cytherura bodotria* n. s. (PI. XII. figs. 6, 7). 
Shell seen from the side of nearly equal height throughout ; dorsal and 
* Bodotria, the ancient name of the Forth. 
