118 "TERRA NOVA" EXPEDITION. 



At .Station two extremely abnomial individuals, one, fossil, which we have 

 described and figured elsewhere (H.-A. & E. 1920, VP. p. 161, pi. xvi, fig. 3). 

 This is the Glohotextularia anceps (Brady) of Eimer and Fickert (1899, Artbildung 

 und Verwandtschaft, pp. 559 and 563, figs. 6 and 10 ; and Cushman, 1910, etc. 

 FNP. 1910, p. 125, fig. 25). The other, to all appearance recent. The latter specimen 

 is broken, but when perfect the oral extremity appears to have terminated in a 

 series of large globular chambers irregularly disposed round the textularian 

 aperture on the last normal chamber. 



[Arenaceous isomorpli of the abnormal form. Haplophragmiuni anceps, Brady.] 



181. Textularia sagittula, Def ranee. 



Textularia sagittula, Dcfrance, 1824, Diet. Sci. Nat., vol. xxxii, \t. 177 ; vol. liii. ]>. 341 ; Atlas 

 Conch. 1)1. xiii, fig. 5. 

 Heron-Allen and Earland, 1914, etc., FKA. 1915, p. 625. 



and 



Spiroplecta lorightii, Silvestri. 



Spiroplecta sagittula (Defrance), Wright. 1891, SWI. p. 471. 



Heron-Allen and Earland, 1914, etc., FKA. 1915, p. 634. 



Stations 2, 3, 5, 6. 



These two forms occur, as usual, in company, and we have less hesitation than 

 ever as to their specific identity. Both are characterized whenever they occur 

 by fistulose development. The best range occurs at Station 6, where T. sagittula 

 attains a very fine development in pectinate forms such as T. 'inariae, d'Orl). (d'O., 

 1846, FFV. p. 246, pi. xiv, figs. 29-31), and T. prctmata, Eeuss (R., 1849-50, FOT. 

 p. 381, pi. xlix, figs. 2, 3). In a few instances the pectination is even more strongly 

 developed than in either of these forms, developing into pronounced fistulose tubules. 

 These individuals are, perhaps, racially distinct from T. sagittula, as no spii'oplectine 

 individuals having the glistening, smoothly agglutinated, external shell-layer, 

 which characterizes the pectinate individuals were observed. The typical 

 T. sagittula and the typical S. wrightii have a characteristically matt surface. 



181 A. Textularia milletti, Cushman. 



Textularia milletti, Cushman, 1910, etc., FNP. 1911, p. 13, figs. 18, 19. 

 Station 1 1 . 



Very rare but typical. They resemble Cushman's figures much more closely 

 than the figure of Millett of T. sagittula, var. jugosa, T. R. Jones (M., 1898, etc., 

 FM, 1899, p. 561, pi. vii, fig. 8), on which Cushman's new specific name is founded. 



182. Textularia rugosa (Reuss). 



Plecanium rugosuw, Reuss, 1869, FOG. p. 4-53, pi. i, fig. 3. 



Textularia rugo.sa, Heron-Allen and Earland, 1914, etc., FKA. 1915, p. 625, pi. xlvii. fios. 7-9. 



Stations 2, 6. 



