68 DISCOVERY REPORTS 



Frequent at St. 144, where the best specimens were found. Very rare at the remaining 

 stations. The specimens are not highly complex aggregations, such as were figured by 

 Haeusler, but simpler aggregations such as we figured, especially in pi. xxviii, fig. 13 

 {ut supra). 



Sub-family RHABDAMMININAE 



Genus Jaculella, Brady, 1879 



78. Jaculella obtusa, Brady (F 70) (Plate II, fig. 11). 



Four stations: 16; WS 40, 353, 429. 



Very rare, only single specimens at each station and those very small. The specimen 

 from WS 40 is rather interesting, being built almost entirely of broken sponge spicules, 

 selected of approximately proportionate length according to their position in the tube. 

 They are cemented together at right angles to the axis of the specimen and so give a 

 quadrate shape to the oral end. Length i-6 mm. 



Genus Hippocrepina, Parker, 1870 



79. Hippocrepina indivisa, Parker (Plate IV, figs. 31-4). 



Hippocrepina indivisa, Parker, 1870, GSTL, p. 176, fig. 2. 



Hippocrepina indivisa, Brady, 1881, HNPE, p. 100, pi. ii, figs. 3,4; 1884, FC, p. 325, pi. xxvi, 



figs. 10-14. 



Five stations: 144; WS 33, 40, 42, 154. 



Single specimens at St. 144, WS 40, 154, five at WS 33 and eight at WS 42, which is 

 the deepest station, in 198 m. All the specimens are fine and typical except one at WS 42, 

 in which the aperture is large, occupying nearly the whole of the oral extremity, and 

 surrounded by an irregular reverted collar. It is probable that such specimens represent 

 an individual in the act of enlarging its test, the apertural end being absorbed prior to the 

 addition of fresh material lengthening the test. It may be remarked that all Brady's 

 figures are drawn from specimens in this condition. 



80. Hippocrepina oviformis, Heron-Allen and Earland. 



Hippocrepina oviformis, Heron-Allen and Earland, 1914, etc., FKA, 1915, p. 617, pi. xlvi, 

 figs. 23, 24. 



One station : MS 68. 



A single specimen, which agrees with the original figure of the type from the Kerimba 

 Archipelago, East Africa. The type specimen is unfortunately not available for com- 

 parison, damp having caused deterioration. 



81. Hippocrepina flexibilis (Wiesner) (Plate II, figs. 12-15). 

 Technitella flexihilis, Wiesner, 193 1, FDSE, p. 85, pi. vii, fig. 75. 



Four stations: 144, 149; WS 28, 32. 



