632 MESSES. E. HEEON-ALLEN AND A. EAELAND ON THE 



1 Station. 



One quite typical specimen'. This appears to be a very rare form, but at the same 

 time Avidely distributed, the ' Challenger ' locality being the North Atlantic, whilst 

 Millett records it from the Malay Archipelago and from the Torres Straits. 



CiiRYSALiDiNA d'Orblgny. 



179. Chrysalidina dimorpha Brady. (Pi. >;:lvii. figs. 29-31.) 



Chrysalidina dimorpha Brad^', 1879, etc., IIRC. 1881, p. 54. 



„ „ Brady, 1884, FC. p. 3«8, pi. xlvi. figs. 20, 21. 



„ „ Egger, 1893, FG. p. 274, pi. vi. figs. 47, 51, 52. 



Millett, 1898, etc., FM. 1900, p. 12, pi. i. fig. 14. 



Cusliman, 1910, etc., FNP. 1911, p. 60, figs. 96, 97. 



4 Stations. 



This beautiful but rare species is represented by an occasional specimen at a few 

 Stns. It was most frequent at Stn. 3, but the finest specimen was from Stu. 9 : this 

 was of quite abnormal size, there being 14 or 15 chambers in the uniserial portion of 

 the test. Our records tliough few, are scattered practically all round the world in 

 tropical shallow ^vater, including the east coast of Madagascar. 



BiGENEEiNA d'Orbigny. 



180. Bigenerina nodosaria d'Orbigny. 



Bigenerina nodosaria d'Orbigoy, 1826, TMC. p. 261, no. 1, pi. xi. figs. 9-12, Modele no. 57. 

 Terrigi, 1880, SG1\ p. 192, pi. ii. fig. 28. 

 „ Brady, 1884, FC. p. 369, pi. xliv. figs. 14-18. 



„ Goes, 1894, ASF. p. 37, pi. Yii. figs. 313-323. 



„ MiUett, 1898, etc., FM. 1899, p. 564, pi. vii. fig. 13. - 



2 Stations. 



A single abnormal specimen at Stn. 12, in which the nodosarian chambers start at 

 an angle from the penultimate chamber of the textularian initial portion, leaving the 

 final textularian chamber with its aperture projecting at the side of the test. The 

 textularian portion of the shell is of the Textularia conica type. A fine normal 

 specimen at Stn. ^X. 



Pavonina d'Orbigny. 



181. Pavonina flabelliformis d'Orbigny. (PI. XLVIII. figs. 1-6.) 



Pavonina flubelliformis d'Orbigny, 1826, TMC. p. 260. no. 1, pi. x. figs. 10, II, Modele no. 56. 

 Biady, 1879, etc., RRC. 1879, p. 282, pl. viii. figs. 29, 30. 

 „ „ MobiV.s, 1880, FM. p. 91, pl. viii. figs. 13-15. 



Brady, 1884, FC. p. 374, pl. xlv. figs. 17-21. 

 Millett, 1898, etc., FM. 1900, p. 7. 

 Chapman, 1902, CKA. p. 231. 



6 Stations. 



This rare and beautiful form may be considered to be one of the most typical 



