AND OSTRACODA COLLECTED ROUND FUNAFUTI. 429': 



arched, o£ the right valve nearly straight in the middle j on the right side 

 showing a conspicuous overlapping of the left valve ; the lower posterior third 

 of the dorsal margin slopes rapidly inwards, curving to the tapering posterior 

 angle, at which it meets the gently sinuous ventral border, giving an almost 

 pyriform outline to the carapace. Anterior of left valve, the middle of the 

 dorsal line, and the whole length of the ventral line showing a marked over- 

 lap. Edge view ovate, compressed, and sharp at both extremities ; left valve 

 slightly more tumid than the right. Lucid spots about ten in number, of 

 irregular shape, forming a distinct group in the median area. Length 1*1 

 mm. ; height '625 mm. ; thickness of carapace "312 mm. 



This species cannot be referred to Bythocypris hosquetiana, G. S. Brady, sp. ,, 

 on account of the remarkable attenuate extremity. In most other par- 

 ticulars it agrees with the form just mentioned, but another striking point of 

 difference is the fewer lucid spots in B. hosquetiana. The species is named 

 in honour of Prof. W. J. SoUas, LL.D., D.Sc, F.R.S., who inaugurated the 

 work of boring at Funafuti. 



Occurrence. — Sta. 13, 1050 fms. 



(?) Btthootpris heterodoxa, sp. nov. (Plate 56. figs. 20 a, h.) 



Description. — Left valve subovate in lateral aspect ; anterior extremity 

 broadly rounded ; ventral border nearly straight ; dorsal line strongly arched 

 and sloping rapidly to meet the ventral line at a rather sharp angle. Surface 

 faintly pitted ; bearing a sharp spine in the middle of the valve close to the 

 dorsal margin, which curves outwards and downwards. Edge view elongately 

 subovate, compressed at the extremities. 



Length "687 mm. ; height "54 mm. 



Occurrence.— ^ta. 11, 1417 fms. ; 13, 1050 fms. ; 20, 1215 fms. 



Grenus Baikdia, McCoy. 



Bairdia foveolata, G. S. Brady. 



Bairdia foveolata, G. S. Brady ('80), p. 55, pi. 8. figs. 1 a-f, 2 a-f; id. ('90), p. 493 ? 

 Egger ('01), p. 426, pi. 2. figs. 1-4 ; Cliapmau ('022), p_ 423. 



This is one of the commonest species of Bairdia found round Funafuti, but 

 mainly restricted to shallow water. 



Occurrence.— ^i^. 10, 1485 fms. ; 11, 1417 fms. ; 13, 1050 fms. 



* Bairdia hosquetiana, G. S. Brady, Trans. Zool. Soc. vol. v. 1865, p. 364, pi. 57. figs. 5 a-c. 

 Bythocypris reniformis, G. S. Brady, 1880, Rep. Chall. Zool. pt. iii. p. 46, pi. 5. figs. 1 a~L 

 Bythocypris hosquetiana, G. S. Brady, sp., Brady & Norman, 1889, Trans, R. Dubl. Soc. 

 ser. 2, vol. iv. no. ii. p. 120, pi. 14. figs. 84, 35. 



