644 MESSRS. E. HEEOIs^- ALLEN AND A. EAELAND ON THE 



tropical waters. The best examples we have seen are from the late Capt. Seabrook's 

 dredgings in the Macassar Straits (45 fms.), but we have also met with occasional 

 specimens in Vavau (Pacific) and other Pacific gatherings, and in shallow water at 

 Ngoney, Madagascar. 



BoLiviNA d'Orbigny. 



215. Bolivina punctata d'Orbigny. 



Bolivina punctata d'Orbigay, 1839, FAM. p. 63, pi. viii. figs. 10-12. 

 Mobius, 1880, FM. p. 94, pi. ix. figs. 9, 10. 

 Brady, 1884, FC. p. 417, pi. lii. figs. 18, 19. 

 Goes, 1894, ASF. p. 49, pi. ix. figs. 475-478, 480. 

 „ „ Cbapman, 1900, FLP. p. 186. 



Chapman, 1907, RFV. p. 128. 

 „ „ Heron-Allen & Earland, 1908, etc., SB. 1909, p. 336; and 1910, p. 409, 



pi. vii. fig. 3. 



17 Stations. 



Universally distributed, but less abundant than JB. nohilis, into which it passes 

 imperceptibly. The same long and short forms occur as in that species, and, judging 

 by casual examination, the short form represents the megalospheric type. A bifarine 

 form occurs at Stns. 1, 3, and 11. At Stn. 1 a strongly limbate variety also occurs. 

 The bifarine specimens are quite hyaline, and not tinged witli orange colouring-matter 

 in the initial chambers as is so frequently the case. At Stns. 2, 6, 7, 10, and 11a very 

 coarsely perforate broad type occurs, at Stn. 7 these specimens have the perforations 

 arranged in longitudinal hues, at Stn. 6 a specimen occurred which was weakly hispid 

 all over. 



216. Bolivina nobilis Plantken. 



Bolivina nobilis Hantken, 1875, CSS. p. 65, pi. xv. fig. 4. 



Brady, 1884, FC. p. 424, pi. liii. figs. 14, 15. 

 Egger, 1893, FG. p. 299, pi. viii. figs. 35-37. 

 MiUett, 1898, etc., FM. 1900, p. 541, pi. iv. fig. 4. 

 „ Chapman, 1907, TFV. p. 32, pi. iv. tig. 81. 



17 Stations. 



Occurs at every Stn., fairly abundant at all except Stn. 8, where it was very rare. 

 As usual, the specimens exliibit considerable variation both in shape and strength 

 of marking. Two distinct types are found in company at most Stns. : a long type 

 regularly increasing in breadth to the final chamber, and a short broad type which is 

 of approximately equal width throughout three-quarters of its length. The two types, 

 except at Stn. 9, where they are equally abundant, vary in proportion, the short type 

 being by far the commoner. The strength and extent of the costse range between 

 specimens in which only a few faint markings occur on the earlier chambers, and others 



