320 REPORT— 1892. 



•Idmonea ? truncata, Blain., 'Man. d. Act.,' p. 4:20 =Mille^or a, Woodj 



ward. 

 *Pustnlopora madreporacea, Goldf., ' Petrifac.,' p. 35, pi. 10, fig. 12. 



* „ pustulosa, Lonsd., Dix., ' Geol. Sus.,' pi. 18a, fig. 8 



(Nortli fleet). 

 *Actinopora (Tubulipora) Brongniartii, M. Ed., ' Ann. Sc. Nat.,' pi. 14, 



fig. 1. 

 *Eschara cancellata, Goldf., ' Petrifac.,' p. 34, pi. 8, fig 13. i 



* „ disticba, Goldf., I. c, p. 25, pi. 30, fig. 8. 



* „ pyriformis, Goldf., I. c, p. 24, pi. 8, fig. 10. i 



VI. The Salisbury Polyzoa. 



The only record that I have of Polyzoa from Wiltshire or Hampshire . 

 is that given by Professor Morris in his ' Catalogue of British Fossils.' ' 

 (The asterisks on the left-hand side indicate that I have no examples of 

 the species catalogued.) i 



Alecto (Stomatopora) gracilis, M. Ed., ' Ann. Sc. Nat.,' t. 16, fig. 2, 



Wiltshire. 

 Petalopora pulchella, Lonsd., Dix., ' Geol. Sus.,' pi. 18a, fig. 7, 



Wiltshire. 

 Lunulites cretaceus, Defr., d'Orb., 'Terr. Cret.,' pi. 704, fig. 2, Wilt- 

 shire. 

 *Idmonea cretacea, II. Ed., ' Ann. Sc. Nat.,' t. 12, fig. 5, Hampshire. 

 *Eschara Lonsdalii „ ,, ,, 2 ser., t. 12, fig. 18, Ports- 



mouth, Hampshire. 

 „ sexangularis, Goldf, 'Petrifac.,' p. 24, t. 8, fig. 12, Ports- 

 mouth, Hampshire. 



In 1891 I received from Dr. Blackmore, of Salisbury, a very beautiful 

 series of Polyzoa, -which had been collected from the different zones of 

 the Upper Chalk in the neighbourhood of Salisbury. The zonal suc- 

 cessions as characterised by Mr. Westlake I have already adopted in a 

 previous part (p. 4) of the present report ; but a few other remarks may 

 be advantageously quoted from the same paper ' by -way of explanation. 

 ' The Upper Chalk is a very pure calcareous sediment. The time -which 

 elapsed during its deposit was sufficient to allow of a variation in the 

 forms of the shellfish and the replacement of one by another. We cau 

 trace this in the Upper Chalk of our own valley, f i-om its lowest part (with 

 Micraster cor-fesiudinarium) in the pit east of Clearbury, to the highest 

 (with Belemniiella mucronata), which appears in the pits of Redlynch, 

 Searchfield, Breamore, Outwich, Whitsbury, Brookheatb, West Park, 

 and Damerham.' In sending me the Polyzoa, Dr. Blackmore gave in his 

 letters very full notes respecting the various zones from whence the 

 forms were derived. The BelenimteUa quadrata zone seems to have 

 yielded the greater number of species, probably on account of its being 

 60 largely used in the neighbourhood of Salisbury for the purpose of 

 manufacturing whitingr. The localities specialised by Dr. Blackmore are 

 East Haruham and Whaddon. Sections of the Chalk have been exposed 

 in the higher zone, with Belemnitella oimcronata, at Clarendon and 

 Short End. This zone. Dr. Blackmore remarks, corresponds with the 

 Norwich beds, excepting those at Tormingham, which are probably 



' ' Outlines of the Geolofry of Fordingbridge, <tc.,' from MltchelVs Fordinghridge 

 Almanack and Directory, 1889, p. 7. 



