l8 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I28 



sutures which reflect the lateral pores of the apertures of earlier 

 chambers. These pores continue to connect with the interior. 



Genus TUBINELLA Rhumbler, 1906, emended 

 Plate 3, figures 11, 12 



Original description. — Zool. Jahrb., Abt, Syst., vol. 24, p. 25, 1906. 



Type species. — Articulina jiinalis var. inornata Brady, 1884. Sub- 

 sequent designation by Cushman (1928, p. 151). 



Diagnosis. — Test free, with a vestigial early milioline stage consist- 

 ing of a bulbous proloculus and closely appressed second chamber, 

 reversing the direction of growth ; later chambers cylindrical and uni- 

 serially arranged; septa vestigial, consisting of slight transverse thick- 

 enings of the wall, visible in transmitted light ; wall calcareous, imper- 

 forate ; aperture at the open end of the tube. 



Types. — Brady did not designate a holotype, having numerous speci- 

 mens which are now labeled as syntypes. We are here designating as 

 lectotype the larger specimen figured here (fig. 12), B.M.N.H. No. 

 ZF 3656, from Challenger station 149 D at 20 to 60 fathoms, Balfour 

 Bay, Kerguelen Island. Smaller paratype, here figured (fig, 11), also 

 in the B.M.N.H. 



Discussion. — The early portion has never been completely figured. 

 Cushman (1948, p. 182) remarked "Test with an ovoid early por- 

 tion." Galloway (1933, p. 131) referred to it as "initial chamber 

 bulbous," basing these descriptions upon Brady's figures which do 

 not show the subdivision of the early portion. However, in Brady's 

 description of Artictdina jitnalis, of which he considered inornata a 

 variety, mention was made of this, as he stated "Milioline segments 

 few and small, forming collectively a little inflated or bulbous pro- 

 jection at the narrower end of the shell." 



At the time of original description of the genus Tuhinella, Rhumbler 

 included in it Articulina fnnalis Brady and A. inornata Brady, and a 

 new species Tuhinella perforata Rhumbler. He illustrated the species 

 T. perforata, which is very close to his original definition of the genus, 

 completely lacking any divisions in the early portion. It is probable 

 that his definition of the genus was based on his own species, but 

 unfortunately he failed to state this and no type was designated. In 

 191 1 he described another species, T. suspecta, which also lacked any 

 division of the early portion. 



In 1928 Cushman selected Brady's species Articulina funalis var. 

 inornata as the type species of Tubinella. In 193 1 Wiesner (p. 67) 

 described another genus, Tubinellina, for Brady's species Articidina 



