Vol. 63J SKELETON OF GONIOPHOLTS CRASSIDENS. 57 



fig. 2, c), four lumbar (PL IV, fig. 2, d), and the first sacral 

 (PL IV, fig. 2, e) vertebrae, in consecutive series, many sternal and 

 abdominal splint ribs, the left coracoid, the left humerus, the right 

 and a moiety of the left ilium, right ischium, and the two femurs. 



All the vertebrae are amphiccelous, otherwise they approach in 

 form closely to those of the recent crocodiles. The neurocentral 

 suture rises from behind forward in the cervical. It is convex in 

 the dorsal and lumbar, while in the first sacral it is sigmoid. 



There are eight right thoracic vertebral ribs (PL IV, fig. 1, h) 

 and four left, more or less perfect. Many of the cartilaginous 

 sternal ribs lie scattered in the matrix between the vertebral 

 ribs, some being well exposed. Four of the abdominal splint ribs 

 (PL IV, fig. 1, j ) are preserved. 



The coracoid (PL IY, fig. 2,g) is very elongate. It has a slight 

 expansion at its ventral end. 



The humerus (PL IV. fig. 2, h) is a very powerful bone. The 

 deltoid ridge is not displayed. It is 25 millimetres shorter than the 

 femur. Owen r gives further particulars of this bone. 



Embedded in the matrix on the right of the skull, under the 

 squamosal, lie the distal ends of the radius and ulna, and(?)the 

 radiale and ulnare. There is a portion of the shaft of a limb-bone 

 visible in the left supratemporal fossa, as it passes from the base 

 of the skull towards the left orbit. 



The ilium (PL IY, fig. 1, Jc) has the pre- ace tabular portion short, 

 and the post-acetabular very long and strongly curved. Owen 

 describes it (op. cit. p. 3) as being ' broader than in the existing 

 Crocodilians.' The acetabular region is a shallow concavity, with 

 plenty of space for the play of the femur. On the summit of the 

 crest the bone is considerably thickened, and the spinous process 

 very highly developed. 



The ischium (PL IY, fig. 2, i) is short. Proximally it is much 

 bifurcated. Its distal end is moderately broad. 



The distal end of one of the pubic bones has alone been recovered. 



The femur (PL IY, figs. 1 & 2, m &j) has the usual Crocodilian 

 characters, with the inner portion of the proximal condyle and the 

 median trochanter more strongly developed. 



Twenty consecutive right dorsal scutes (PL IV, fig. 1, p) and 

 several of the median ends of the left lie in the natural position. 

 Two of the scutes on the right show well the characteristic 

 pegs. There are also nine scutes of the ventral buckler, joined 

 by their sutures. Numerous dorsal, ventral, and other scutes 

 are scattered throughout the matrix. They call for no detailed 

 description, as their characters are well known. 



The portion of the axial skeleton obtained, that is, from the tip 

 of the mandibles to the posterior end of the first sacral, measures 

 1*505 metres (4 feet 11 J inches) ; and, if we allow for the missing 

 cervical and dorsal vertebrae 1*930 metres (6 feet 4 inches), the total 

 length of the reptile must have been about 3 \ metres (11| feet). 



1 * Monograph of the Fossil Eeptilia of the Wealden & Purbeck Formations ' 

 Suppl. viii (Palaeont. Soc. 1878) p. 5. 



