FOEAMINIFEEA OF THE KEEIMBA AECHIPELAGO. 575 



ornamentation, but the general character of the markings {e.g., the deeply channelled 

 grooves, with their prominent and fiat-topped dividing ridges, arranged in strongly 

 contorted and almost reticulated patterns on the shell-surface) is a constant and readily 

 reco"-nisable feature. Millett's figure of M. parkeri is an admirable illustration of 

 the broader types of our species, but at Kerimba it presents an enormous range 

 of form which we have attempted to illustrate. 



The affinities of the form appear to lie between M. linnceana and M. reticulata, with 

 both of which species M. kerimhatica is joined by a series of intermediate examples. 



The size is very variable, ranging between -5 and 1-75 mm. in length and •4-1-1 mm. 

 in breadth. 



(Group of M. contorta and M. bicorms.} 



67. Miliolina anguina (Terquem), var. agglutinans Wiesner MS. 

 QuinquelocuUna anguina Terquem, 1878, FIR. p. 78, pi. is. (xiv.) fig. 20. 



6 Stations. 



Terquem {ut supra) figures a little quinqueloculine miliolid with an elongated por- 

 cellanous test. No typically porcellanous specimens referable to Terquem's figure and 

 description occur at Kerimba, but occasional examples with sclerotic tests occur, and at 

 a few Stns. specimens with a distinctly subarenaceous investment were found agreeing 

 with co-type specimens kindly furnished us by Herr Wiesner (whose work on the 

 Miliolidas is in course of publication), and which he proposes to describe under the 

 above varietal name. They may be compared with the " Planche inedite " of Quinque- 

 locuUna aspera d'Orbigny, pubhshed by Fornasini (F. 1905, SOM. p. 65, pi. iii. fig. 1), 

 but differ in having a produced neck, similar to Terquem's original type. 



68. Miliolina agglutinans (d'Orbigny). 



QuinquelocuUna agglutinans d^Orbigny, 1839, FC. p. 195, pi. xii. figs. 11-13. 

 Miliula [QuinquelocuUna) agglutinans Parker & Jones, 1865, NAAF. p. 410, j)]. xv. fig. 37. 

 Miliolina agglutinans Terrigi, 1880, SGP. p. 172, pi. i. fig. 1. 

 „ „ Brady, 1884, FC. p. 180, pi. viii. figs. 6, 7. 



„ Balkwill & Wright, 1885, DIS. p. 325, pi. xiii. figs. 1-3. 



Egger, 1893, FG. p. 239, pi. ii. fig. 55. 

 Goes, 1894, ASF. p. 110, pi. xix. fig. 848 ; pi. xx. fig. 849. 



16 Stations. 



Universally distributed and very coipmon at some Stns., especially in the Northern 

 Area, often attaining considerable size. The specimens are coarsely built and, as a rule, 

 typical ; but at some Stns., notably Stn. 3, there was a tendency to variation, specimens 

 linking the species with M. contorta and M. trigonula being found. At many Stns., 

 notably Stns. 7 and 9, there was a tendency towards a complanate or compressed type 

 of shell, the last two chambers being abnormally large and set on opposite sides of the 

 longitudinal axis, so as to give a concave surface on one side of the shell. This may 



VOL. sx. — PAKT XVII. No. 5. — Notemhev, 1915. ^ N 



