FOEAMINIFEEA OF THE KERIMBA ARCHIPELAGO. 707 



8 Stations. 



Generally distributed, but like the typical T. lohatida never abundant. The 

 specimens may be divided into two very distinctive groups : (i.) wild-growing Gypsinu- 

 like variations of the common T. lohatida — these are all small and somewhat finely 

 perforated; (ii.) the large and coarsely perforate Soldanian type with thickened everted 

 lip to the aperture as figured by Sidebottom {xit supra). Very fine specimens of 

 this type occur at Stn. 11, and more sparingly at Stns. 9 and 12. At Stn. 11 a single 

 specimen was found of a plano-convex type, in which the later chambers are arranged 

 in a straight lituoline series {cf. B. 1912, FPC. pL xxv. fig. 4 and B. P. & J. 1888, 

 AB. pi. xlv. fig. 17). It must be borne in mind that Soldani in his ' Testaceographia ' 

 (1789) devoted twenty-two whole plates (and part of two others) to drawings of these 

 variations, on some of which d'Orbigny founded his species. Fornasini {lit supra) 

 has also made a special study of its variations, to which we referred in our Clare Island 

 Monograph. 



382. Truncatulina tenuimargo Brady. 



Truncatulina tenuimargo Brady, 1884, FC. p. 662, pi. xciii. figs. 2, 3. 

 Egger, 1893, FG. p. 399, pi. xvi. figs. 7-9. 

 Herou-AUen & Earland, 1898, etc., SB. 1909, p. 680, pi. xx. fig. 2. 



7 Stations. 



Generally distributed, but rare. At Stn. 3 a specimen was found with the inferior 

 or rounded surface covered with pustular excrescences in the form of tubules originating 

 from the perforation. This would appear to be isomorphous with our recently 

 described Biscorbina pustulata (see No. 367). 



383. Truncatulina refulgens (Montfort). 



Cibicides refuhjens Montfort, 1808-10, CS. vol. i. p. 122, 31me genre. 



Truncatulina refulgens d'Orbigny, 1826, TMC. p. 279. no. 5, pi. xiii. figs. 8-ll,Modele no. 77. 



Brady, 1865, RFND. p. 105, pi. xii. fig. 9. 



Brady, 1884, FC. p. 659, pi. xcii. figs. 7-9. 



Egger, 1893, FG. p. 401, pi. xvi. figs. 31-33. 



8 Stations. 



Very sparingly distributed, and except at Stns. 10 and 12 very small, but the 

 individuals are typical. 



384. Truncatulina mundula Brady, Parker, & Jones. 

 Truncatulina mundula Brady, Parker, & Jones, 1888, AB. p. 228, pi. slv. fig. 25. 



3 Stations. 



Very rare. Only a few typical specimens were observed of this characteristic type, 

 which appears to occupy a position between T. lohatula and T. liaidingerii. 



