322 Part III. — Eighth Annual Report 



little for about three quarters of the 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 have 

 been dredged on several occasions at this place, depth 12 to 14 fathoms, 

 bottom clean gravel and sand. The animal has not yet been made out, 

 the species is therefore for the present doubtfully referred to Cythere. 



Cytheridea torosa (Jones). 



C yther idea tor osa, 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 Gytherura gibba (Midler), Candona Candida (Miiller), 

 Trochamina injiata (Mont), Haplophragmium canariense, &c, Granton 

 Harbour (Robertson). I have this species also from Montrose Basin and 

 from Orkney; 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. 



Habitat. — Near the mouth of the Estuary, moderately common. This 

 species is new to the east of Scotland. 



Gytherura gibba (Miiller). 



Cythere gibba, Miiller, Entomostraca, p. 66, pi. vii. figs. 7-9, 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 affinis, idem ibidem, p. 443, pi. xxxii. figs. 17-21, <j? 



var. (non Cytherus affinis, G. 0. Sars). 

 Cytherura lineata, idem ibidem, p. 443, pi. xxxii. figs. 30-34 (jun.). 

 Cytherwa 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 ; dorsai and 



* Bodotria, the ancient name of the Forth. 



