lCy2 "TERRA NOVA" EXPEDITION. 



they are large, ofcen furnished with very wide median carina^ and at Stations 17 

 and 18, passing imperceptibly into var. coronata, Sidebottom. Excellent examples 

 with wide carinae occur as far south as Stations 45 and 48. 



361. Lagena orhignyana, var. selseyensis, .Heron-Allen and Earland. 



Lagena orhignyana, var. selseyensis, Hcron-AIlen and Earland, 1908, etc., SB. 1909, p. 426, 



pi. xvii, figs. 1, 2. 

 Halkyard, 1919, BMB. p. 63. 



Stations 3, 6. 



The elongate type referred to in our note on L. orhignyana reaches its 

 final development in specimens occurring at these Stations, and referable to our 

 variety ut supra. 



362. Lagena orbignyana, var. walleriana, Wright. 



Lagena orhignyana, var. walleriana, Wright, 1886, SWI. p. 611; and 1891, SWI. p. -181. 



pi. XX, fig. 8. 

 Heron-Allen and Earland, 19U, etc., FKA. 1915, p. 666, 

 pi. L, figs. 31-36. 



Stations 3, 6, 7. 32. 



Very rare, single individuals only at each Station. Excellent at Stations 7 



and 32. 



363. Lagena orbignyana, var. haccata, nov. PI. YI, figs. 15, 16. 



Stations 4, 5, 6, 8. 



Test circular in outline, consisting of a cu'cular chamber with short pro- 

 duced neck, flush with the extremity of which the median carina extends without 

 variation in width right round the shell. The superior and inferior faces of the 

 chamber are either parallel or but slightly convex, and its edge is furnished 

 with a thickened margin forming the outer carina of the test, this carina 

 being broken up at regular intervals all round by constrictions which give a 

 beaded outline to a complete ring concentric with the centre of the test. 



Dimensions: — •20mm. in diameter; •07 mm. in thickness. 



This very characteristic and pretty little form is confined to the X.Z. area, 

 where it occurs sparingly at the Stations. 



364. Lagena orhignyana, var. concentrica, Sidebottom. 



Lagena orhignyana, var. concentrica, Sidebottom, 1912, etc., LSP. 1912, p. 417, pi. xix, fig. 23. 



Cnshman, 1910, etc., FNP. 1913, p. 44, pi. xix, fig. 2. 



Station 36. 



A few good specimens. The median carina is wider and better developed 

 than in Sidebottom's figure. 



