FOEAMINIFEKA OF THE KEKIMBA AECHIPELAGO. 659 



256. Lagena perlucida Williamson. 



Lagena vulgaris, vav. perlucida Williamson, 1858, UFGB. p. 5, pi. i. figs. 7, 8. 

 Lagena perlucida Heron- Allen & Earland, 1908, etc., SB. 1911, p. 320, pi. x. lig. 13. 

 Heron-Allen & Earland, 1913, CI. p. 78. 



2 Stations. 



A few poor and weak specimens of this rather unsatisfactory form at Stns. 4 

 and 12. 



257. Lagena sulcata (Walker & Jacob). 



Serpula {Lagena) striata sulcata rotundata Walker & Boys, 1784, TMR. p. 2, pi. i. fig. 6. 



Serpula [Lagena) sulcata Walker & Jacob, 1798, AEM. p. 634, pi. xiv. fig. 5. 



Lngena sulcata Parker & Jones, 1865, NA.\F, p. 351, pi. xiii. figs. 28, 29 ; pi. xvi. figs. 6, 7. 



Brady, 1884, FC. p. 462, pi. Ivii. figs. 23, 26, 33, 34 ; Apiculate forms, pi. iviii. 

 figs. 4, 17, 18, etc. (References). 



Millett, 189S, etc., FM. 1901, p. 488 (References). 



6 Stations. 



Very rare, and only poorly developed specimens with short necks, except at Stns. 7 

 and 12, where the species was large and frequent, and characterized by numerous 

 short and stout spines radiating from the base. 



25S. Lagena lyellii (Seguenza). 



Amphorina hjeUii Seguenza, 1862, FMMM. p. 52, pi. i. fig. 40. 

 Lagena lyellii Brady, 1870, FTR. j). 292, pi. xi. fig. 7. 



„ Balkwill & Millett, 1884, FG. p. 27, pi. ii. fig. 2. 



„ Sidebottom, 1910, RFBP. p. 15, pi. i. figs. 13-15, 17, 18. 

 . „ „ Heron-Allen & Earland, 1913, 01. p. 79, pi. vi. fig. 8. 



6 Stations. 



A good many specimens at Stn. 1, less frequent at the others. All the specimens 

 are of a rather marked type, characterized by relatively few stout costse. In the 

 nature of their markings they resemble terminal chambers of Nodosaria hicamerata 

 Rymer Jones, and had that species occurred in the Kerimba gatherings the question 

 of the identity of our specimens would have been open to considerable doubt. 



259. Lagena williamsoni (xilcock). 



Entosolenia williamsoni Alcock, 1865, NIIC. p. 195. 

 ' Lagena wilUamsotii Wright, 1877, RFDA., App. p. 104, pi. iv. fig. 14. 



Balkwill & Wright, 18»5, DIS. p. 339, pi. xiv. figs. 6-8. 

 Heron-Allen & Earland, 1913, CI. p. 80. 



1 Station. 



One typical specimen only of this form, usually very abundant in higher latitudes. 



