Wright — Foraminifera of Down and Antrim. 319 



The following notes in reference to some of the species found may be of 

 interest : — 

 Miliolina insignis, Brady. (PI. xxvi. fig. 4, a, b.) 



Miliolina insignis, Brady, 1882, Rep. Foram. H.M.S. Challenger, p. 165, 

 pi. 4, figs. 8-10. 



This species, in contour, resembles Miliolina trigonula, but differs from 

 it in the surface of the shell being marked by closely set, regular, longitudinal 

 costse. Only two specimens were obtained. They were from gatherings 

 taken a few miles apart. The size is small, and the surface ornamentation 

 consists of faint longitudinal lines. New to Britain. 



IMEillollna subrotunda, Montagu, sp. var. (PI. xxvi. fig. 5, a, b.) 



Vermiculum subrotundum, Montagu, 1803, Test. Brit., part 2, p. 521. 



This variety differs from the typical Miliolina subrotunda in having the 

 peripheral edgo ornamented with somewhat irregular, oblique costae. Fre- 

 quent in shallow water gatherings. 

 Byperammlna arbor escens, Norman, sp. (PI. xxvi. fig. 1.) 



Psammatodendron arborescens (Norman MS.), Brady, 1881, Deukschr. d. 

 K. Akad. Wiss. Wien, vol. xliii., p. 98, No. 13. 



Mr. Brady* thus refers to this species : — " This interesting form was dis- 

 covered by the Rev. A. M. Norman growing on a polyzoan (Menipea ternata), 

 dredged during the cruise of the " Valorous " off Holstenborg, Greenland, at 

 the depth of 20 fathoms, and the name Psammatodendron arborescens was first 

 assigned to it. The original specimen figured in Plate XXVIII. was most 

 kindly lent to me by Mr. Norman when it was the only known example that 

 was even approximately perfect. Quite recently, however, the species has 

 been found in some abundance by Mr. David Robertson, off Cumbrae, on the 

 west coast of Scotland." A few years ago I found a fragment of it in sand 

 which had been dredged by Mr. James Wright off Portrush, County Antrim. 

 Three other localities, given in the "Challenger" Report, complete the list 

 of places where the species has been found. Mr. Brady, however, adds — "It 

 is not improbable that when it is sought for it may turn out a very common 

 species." It has been found in the four " Protector " gatherings, and was 

 abundant in two of them. 



Ammodlscus Shoneanus. Siddall, sp. 



Trochammina Shoneana, Siddall, 1878, Proc. Chester Soc. Nat. Sci., part 2, 



p. 46, figs, l; 2. 

 This species has been found at only a few places, and, excepting at Rock- 

 port, where a good many specimens were gathered, is very rare where it 

 occurs. It was first found in the Dee (Siddall), afterwards at Rockport, 

 Belfast Lough (Malcomson), Killybegs Harbour, Donegal (Wright), Dublin Bay 

 * Keport Forams. H.M.S. Challenger, p. 262. 



