. Bulletin of the British Museum (Natural History), Geology. HODGKINSON been assigned to cenomana, is from the Aptian, Lower Greensand. Faringdon beds. Little Coxwell Pit at Faringdon, Berkshire [Locality No. 6] ( Davis Collection); and Lower Greensand sponge gravel, yellow gravel beds, Wind- mill pit at Faringdon [Locality No. 5] ( Grimsdale collec- tion). Also from the Albian, Gault of Zone XI, at Folkestone (Chapman Collection); the Red Chalk of Hunstanton ( Vine Collection); and the Santonian Uintacrinus socialis Band at Margate and possible specimens from the Cam- panian
. Bulletin of the British Museum (Natural History), Geology. HODGKINSON been assigned to cenomana, is from the Aptian, Lower Greensand. Faringdon beds. Little Coxwell Pit at Faringdon, Berkshire [Locality No. 6] ( Davis Collection); and Lower Greensand sponge gravel, yellow gravel beds, Wind- mill pit at Faringdon [Locality No. 5] ( Grimsdale collec- tion). Also from the Albian, Gault of Zone XI, at Folkestone (Chapman Collection); the Red Chalk of Hunstanton ( Vine Collection); and the Santonian Uintacrinus socialis Band at Margate and possible specimens from the Cam- panian Belemnitella mucronata Zone (both Rowe Col- lection). These additional examples are not discussed in detail here since they will form part of a general review of agglutinating, adnate forms under preparation by others. They are mentioned here to illustrate that the 'genus' was present in the area now represented by southern England from Aptian to Campanian times. Although comparison between typical English and French specimens is relatively easy, there are many English forms from the Chalk which have lost symmetry, intergrown and developed long rectilinear portions (Figs 23, 34). One English specimen from the Aptian at the Windmill Pit, Berkshire (P38038) is very large (8-6 mm long with large included grains). The configurations of the test, as illustrated in my figures, is one of great irregularity, and it is noteworthy that the majority of English specimens, especially those from the Chalk, are composed of very fine-grained material. NEW INFORMATION ON FRENCH AND ENGLISH MATERIAL Dimensions FRENCH specimens ENGLISH specimens 11 Number of specimens measured 20 3-7+ Number of chambers in coil 5-8+ 2-7 Number of rectilinear chambers 8-13 0-9-2-90 mm Length of test 1-85-2-90 mm 0-5-0-95 mm Coil width 0-15-0-48 mm 0-05-1-4 mm Coil length up to 1 mm 0-3-1-0 mm Width of rectilinear portion 0-45-0-9 mm 0-15-0-35 mm Chamber height rectilinear portion 0-2-0-40 mm Wall
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