The above is a fairly complete list of all the known forms of Goniopora. In the foregoing pages, however, evidence in abundance 

 has been given that it can only be regarded as an introduction to our knowledge of the genus. Many new forms may be expected from 

 deeper water. There are vast gaps in the geological record, not to mention the reefs from which we have no specimens at all. 

 Those which we have are isolated and fragmentary, that is, seldom in series, which alone offer any chance of discovering lines of variation 

 {see description of G. Bed Sea 4)- But in addition to those which have not yet been discovered at all, it is certain that great number! of 

 recent and fossil forms must at the present moment be stored in the museums of Europe * with various " specific " names attached, names 

 whose chief use has been protective — specimens dignified with a name receive more care than those which have none. These can all lie 

 worked out now, and the results simply added to those here obtained. 



Again, it is hardly possible that I have seen all the stray notices or even records which are buried in the pages of palaeontological 

 publications ; most of these would, however, be recovered if only the specimens in the museums were worked out. 



The following is a supplementary list of localities at which Poritids, many of them certainly members of this genus, have been not<:d. 



Supplementary List of Localities. 



Persia (see p. 96). Islands of Lake Urmi ; in the limestone floor of the Great Cave of Maku ; at Malishkent (?). As rounded nodules. 



Egypt (see p. 106). Branching forms occur in Lower Tertiary beds, on the southern slope of the Mokattam, at the entrance to the 

 Wadi Dugla, and on the Western Island of the Birket-el-Qurun in the Fayum. See also foot-note below. 



Island of Rhodes (see p. 125). Encrusting. 



Italy (see p. 1 25). Bianchi near Messina — frequent ; Sogliano al Rubicone (Prov. Forli). Encrusting. 



Austro-Hungary (see p. 122). In the Leithakalk of St. Nicholai and Gamlitz, and at Gradische (Styria); Mattersdorf (Hungary); 

 Potzleindorf, Grand, Enzesfeld, Niederleis, Nodendorf and Kaladorf (Austria) ; Nicholsburg and Kostel (Moravia) ; Rudelsdorf 

 (Bohemia). All encrusting. 

 In Leithakalk " des Rauchstallbrun Grabens bei Baden." 



France (p. 118). At the mouth of the Rhone. 



* A fine Lower Eocene specimen of Litharsea (= Goniopora) showing the primitive growth-form, from the Farafra Oasis, Egypt, has just been shown to me by 

 Mr. R. Bullen Newton. It is the property of the Egyptian Geological Survey, and b especially interesting because all the known Egyptian forms are either of tlie 

 primitive type or branching. 



