82 Transactions. 



Miliolina bicornis, Walker and Jacob sp. 



Serpula bicornis, Walker and Jacob, 1798, Adams Essays, 

 Kanmacher's ed., p. 633, pi. xiv, fig. 2. 



Miliolina bicornis, W. and J. sp., Goes, 1894, K. Svenska 

 Vet.-Akad. Handlingar, vol. xxv, p. 113, pi. xxi, figs. 860, 

 861. 



Occasional examples of the above species were met with in 

 the present material. It is a widely distributed form, and is 

 most abundant in quite shallow water, the depth at which the 

 present soundings were taken, 110 fathoms, being near the 

 deepest limit of its occurrence. 



Miliolina agglutinans, d'Orbigny sp. 



Quinqueloculma agglutinans, d'Orbignv, 1839, Foram. Cuba, 

 p. 168, pi. xii, figs. 11-13. 



Miliolina agglutinans, d'Orb. sp., Goes, 1894, K. Svenska 

 Vet.-Akad. Handl., vol. xxv, p. 110, pi. xix, fig. 848, and 

 plate xx, fig. 849. 



Only one typical example of this widely distributed species 

 occurred in this series. 



Subfamily Hauekinin^;. 



Genus Planispirina, Seguenza. 



Planispirina sphaera, d'Orbigny sp. 



Plate III, figs. 1 a, b. 



Biloculiua spkcera, d'Orbigny, 1839, Foram. Amer. Merid., 

 p. 66, pi. viii, figs. 13-16. Brady, 1884, Eep. Chall., vol. ix, 

 p. 141, pi. ii, figs. 4 a, b. 



Planispirina sphara, d'Orb. sp., Schlumberger, 1891, Mem. 

 Soc. Zool. France, vol. iv, p. 577, text-figures 45, 46. 



The examples in the present collection all show the normal 

 V-shaped aperture, with one exception ; this is of larger 

 dimensions, and has a labyrinthic orifice (see figure). The 

 smaller specimens have diameters ranging from 0-425 mm. to 

 - 8 mm., whilst the specimen with a labyrinthic aperture has 

 a diameter of 1*4 mm. 



This species, although never very abundant, is well dis- 

 tributed both as to geographical range and depth. It has 

 already been recorded from this locality at station 169 

 (" Challenger "). 



