Report on Foraminifera. By F. W. Millttt. 623 



According to the figure given by Parker and Jones, this form has 

 but one keel, and may therefore be treated as a variety of L. margi- 

 nata, All the examples from the Malay Archipelago have the triple 

 keel, which indicates their affinity with L. Orbignyana, and still more 

 closely with L. castrensis, since the hexagonal areolations appear to 

 be produced by the enlargement and crowding together of the circular 

 surface ornaments of that variety. 



The L. squamoso-alata of Brady* differs but little in its general 

 form from L. formosa, and may be regarded as a reticulate variety 

 of that species. 



In the Malay Archipelago L. squamoso-marginata is rare, and is 

 confined to Area 2. 



Parker and Jones found it in the white mud of the Australian 

 coral-reefs ; and also record it fossil from the Tertiaries i >f San Domingo. 



Brady (Chall. Kept.) writes : " The species occurs at three points 

 in the North Atlantic, the depths varying from 422 to 81G fathoms; 

 on the Australian coral-reefs ; and on the west coast of New Zealand, 

 1100 fathoms." 



It is recorded fossil by Seguenza from the Miocene and Pleistocene 

 of Italy. 



L. squamoso-alata, according to Brady, '' has been met with at 

 three 'Porcupine' Stations in the North Atlantic, west of Ireland, at 

 depths of 173 fathoms, 630 fathoms, and 1445 fathoms respectively." 



Lagena lagenoides Williamson sp., plate XIY. figs. 8, 9. 



Entosolenia marginata var. lagenoides Williamson, 1858, Kec. 

 Foram. Gt. Britain, p. 11, pi. i. figs. 25, 26. Lagena lagenoides 

 (Will.) Keuss, 1802, Sitzber. k. Akad. Wiss. Wien, vol. xlvi. p. 324, 

 pi. ii. figs. 27, 28. L. lagenoides (Will.) Balkwill and Millett, 

 1884, Journ. Micr., vol. iii. p. 82, pi. ii. fig. 11. L. lagenoides 

 (trigonal) (Will.) Balkwill and Wright, 1885, Trans. R. Irish Acad., 

 vol. xxviii. p. 341, pi. xii. fig. 22. L. lagenoides (Will.) Brady. 

 Parker, and Jones, 1888, Trans. Zool. Soc, vol. xii. p. 223, pi. xliv. 

 fig. 23. L. serrata Schlumberger, 1894, Mem. Soc. Zool. Fr., vol. vii. 

 p. 258. pi. iii. fig. 7. L. lagenoides (Will.) Goes, 1894. K. Svenska 

 Vet.-Akad. Handl., vol. xxv. p. 83, pi. xiii. fiV. 752. L. lagenoides 

 (Will.) Jones, 1895, Palaeont. Soc, p. 201. L. lagenoides (Will.) 

 Morton, 1897, Proa Portland Soc. Nat. Hist,, vol. ii. p. 118, 

 pi. i. fig. 5. 



This protean variety is abundant in Area 2, and occurs spar- 

 ingly at a few Stations in Area 1. Both of the forms indicated by 

 Williamson's figures are plentiful. In the longer of the two the 

 marginal keel or wing is double, and the interspace is more or less 

 occupied by cellular or granular matter ; in the shorter form the wing 

 is less complex ; in both, the tubular neck projects into the body of 



* Chall. Rept., p. 481, pi. lx. fig. 23. 



