456 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [Apr. 18, 



Shell discoidal ; whorls 6, narrow and rounded ; ribs numerous, 

 and divided into regularly arranged rather indistinct tubercles ; some 

 of the interior ribs are bifurcated ; back narrow and keeled, with a 

 row of lengthened tubercles on each side ; aperture ovate. 



The characters of this fine large Ammonite somewhat approach 

 that of the last species, although the form is very distinct, being 

 more wheel-shaped and compressed. 



Named in memory of the late Dr. Stanger, of the Niger Expedi- 

 tion, and Surveyor- General of Natal, whose recent death in South 

 Africa, and consequent loss to science of so able an investigator, we 

 have to deplore. 



Locality. — Cliffs of the South African coast, near the Umtafuna 

 and Umzambani Rivers. 



Clypeiformes. 



3. Ammonites Umbulazt, nov. sp. PI. XI. fig. 4. 



A. testa compressa, carinata ; anfractibus compressis, radiis latis 

 flexuosis ; angustissime umbilicata ; dorso acuto, angulato ; aper- 

 tura sagittata. 



Diameter, 1 inch yV^hs. 

 Diameter of inner whorls, ^^ths of an inch. 

 Length of aperture, j^ths of an inch. 

 Breadth of aperture, y^ths of an inch. 



Shell compressed, keeled ; whorls compressed, with obtuse flexu- 

 ous radiations ; inner whorls partly concealed ; umbilicus very small ; 

 back sharp, keeled, and angular, or bevelled off on each side ; aper- 

 ture lanceolate. 



This small compressed Ammonite has part of the shell still ad- 

 hering, and appears to be nearly related to Ammonites Requienianus, 

 D'Orb., from the C7'aie Chloritee. 



The specific appellation of this Ammonite is the native name of 

 Mr. H. F. Fynn, who is mentioned in Capt, Garden's paper as the 

 discoverer of these Cretaceous deposits, and as his companion on his 

 \isit to these cliffs. 



Locality. — Cliffs of the South African coast, near the Umtafuna 

 and Umzambani Rivers. 



Lcpvigati. 



4. Ammonites Gardeni, nov. sp. PI. XI. fig. 3. 



A. testa compressa, discoidea, laevigata ; anfractibus 6, complanatis, 

 ad umbilicum abruptis ; late umbilicata ; dorso carinato ; carina 

 simplice filiformi ; lateribus sulcatis ; apertura oblonga, compressa. 



Diameter, 5 inches. 

 Diameter of inner whorls, 2\ inches. 



Breadth of outer whorl, \\ inch ; thickness, y%ths of an inch. 

 Breadth of outer whorl of larger fragment, 2 inches ; thickness, 

 1 inch 3%ths. 



