FoltAMINIFKliA— HERON-ALLEN AND EAKLANJX 175 



413. Frondicularia inaequalis, Costa. 



Froiidicidana inaequalis, Costa, 1855, FMMV. p. 372, [A. iii, fig. .3. 

 Brady, 1884, FC. p. 521. i.l. Ixvi, fig.s. 8-12. 



Heron-AllenaudEarland, 1908, etc., SB. I'JO'J, p. 127 ; 1910, pi. vii, 

 fig. 13. 

 Station 11. 

 A broken biit recognizable specimen. 



414. Frondicularia annularis, d'Orbigny. 



Frondicularia annidaris, d'Orbigny, 1846, FFV. p. 59, pi. ii, fig.s. 44-47. 



„ „ Biitsclili, 1880, in Bronn's Klassen und Orduungen, p. 198, pi. viii, 



fig. 15. 

 Station 6. 



A single large recent specimen, presenting characters intermediate between 

 F. anuula-ris, d'Orb., and F. reiissi, Karrer (K., 1861, FWB. p. 441, pi. i, fig. 1). 

 The first six chambers are coarsely sulcate, the seventh faintly so,' the eighth 

 and subsequent chambers devoid of markings. 



415. Frondicularia scottii, sp. nov. PI. VI, figs. 30-32. 



Station 2. 



Test free, tongue-shaped, flattened, and with thick edges. Scored longitudin- 

 ally with deep irregular grooves. Shell-wall very thick and massive, giving an 

 opaque appearance to the shell and concealing all segmentation. When wetted 

 the chambers are seen to be saddle-shaped, the whole of the space between the 

 overlapping edges of the chamber-cavities being filled in with solid shell-matter 

 through which broad tubules extend to the surface of the shell on the marginal 

 edge. Number of chambers, up to nine. 



Dimensions: — Length, -95-1 ■0 mm.: breadth, •40 mm.: thickness -10 mm. 



This is an altogether abnormal form and does not appear to be very nearly 

 allied to any described species. The massive character of the shell-wall, enclosing 

 and masking all segmentation, is a most distmguishing feature. 



The presence of a single specimen of F. scottii in our collection from "■ Chal- 

 lenger " Station 185, of? Eaine Id., Torres Straits, 155 fms. possibly indicates a 

 wide area of distribution for this species. The " Challenger " specimen is smaller 

 and poorly developed, but its identity is unquestionable. 



RHABDOGONIUM, Eeuss. 



416. Rhabdogonium tricarinatum (d'Orbigny). 



Vaginulina tricarinata, d'Orbigny, 1826, TMC. p. 258, no. 4, ModMe no. 4. 

 Rhabdogonium tricarinatum, Millett, 1898, etc., FM. 1902, p. 525. 



Stations 2, 6, 7. 



Frequent at Stations 6 and 7 ; and most typical at Station 6. 



