76 Dr. Art/iur Roice — Uintacrinus near Dover. 



Tlintacrinus and Actmocamax verus ^ extend to within a few feet of the 

 base of the Winfacrinus-hand, and that there Rhijnchonella plicatilis 

 is limited to the base of the sub-zone in question. It is reasonable, 

 therefore, to suppose that we have here the base of the Uintacrinus- 

 band exposed, and not the top of the zone of Micraster cor-anguinum. 

 We saw no evidence of the "Barrels sponge-bed" which divides the 

 two zones in Thanet. The three fossils quoted above are of the twelve 

 species collected here alone of zonal value. 



No. 2. A pit in a coppice about 300 yards west of the northern 

 end of Long-close Wood. It is near a trigonometrical station on the 

 240 feet level. Of the thirteen species collected here Uintacrinus and 

 Actinocamax verus are alone useful for zonal purposes, and the former 

 was found in abundance. 



^0. 3. This is a pit of fair size north of Appleton Farm, one-third 

 of a mile north of the village of Martin. It is in a flintless area of 

 Ui7itacritius-eh.alk, and the name-fossil is abundant. We obtained 

 a list of nineteen species here, but the only forms characteristic of 

 the sub-zone are Actinocamax verus, the nipple-shaped head of 

 Bourgueticrinus, the large form of Porosphcera glohdaris, and Infulaster 

 rostratus, A rostrum of the last-named rare echinid was found by 

 General Cockburn. 



No. 4. There is no pit here, but only a few inches of broken-up 

 chalk exposed on the eastern side of the road, which runs by the 

 eastern side of the reservoir at Martin. Here we were fortunate 

 enough to find Uintacrinus. 



No. 5. An old pit on the we.stern side of Leeze Wood, Martin, is 

 certainly in the same horizon, but it is now covered by grass and 

 bushes. A few pieces of chalk were lying on the grass, and in these 

 we found fragments of Echinocorys, as well as Cidaris perornata, 

 Terebratidina striata, and Ostrea vesicularis ; but Uintacrinus coidd not 

 be seen. There can be no doubt, however, as to the age of this chalk. 



No. 6. A very small, badly exposed pit at Court Lodge Farm. 

 This also yielded Uintacrimcs in fair abundance, but we found no other 

 zonal fossils. 



No. 7. In a pine plantation, 300 yards north-east of Ripple Cross, 

 there is a small pit in flintless chalk which gave us nine species. 

 Of these Uintacrinus and Actinocamax verus are alone worth quoting. 



No. 8. An old pit at a place called " The Hooketts," one-fourth of 

 a mile south of Hingwould, with seven small square caves hewn in the 

 surface. A few nodular flints are seen here. This exposure gave us 

 our longest list (27 species) ; it is the place where we originally found 

 Uintacrinus in this area. The crinoid is abundant and Actinocamax 

 verus not uncommon. In addition we found two examples of the 

 nipple-shaped head of Bourgueticrinus, and Mr. Sherborn obtained no 

 less than three rostra of Infulaster rostratus in one day. Such a stroke 

 of good fortune can hardly have occurred before to any other collector 

 in this sub-zone in the South of England. The large form of Porosplmra 

 globularis was found ; and an example of Lima decussata is from its 

 comparative rarity sufficiently interesting to be worthy of notice. 



' Op. cit., pp. 296-300. 



