On a Crocodile from the Middle Purlech of Sroanage. -185 



J.jaculiis f/oi'doni, Thos. — Larger, browner. Egyptian Soudan. 

 J.jafulus jaculus, Linn. — Smaller, paler. Lower Egypt. 

 J. jaculits favonicus, Thos. — Smaller, more ochraceous. S.W. Mauri- 

 tania. 

 J. jacidua vuUumus, Thos. — Smaller, browner. Somali. 



Brief diagnosis of the la.st-iiam( d : — 



Jaculus jaculus vultunnis, subsp. n. 

 Jaculus, Drake-Brockman, Mammals of Somaliland, p. 141 (1910). 



Size about as in true J. jaculus of Lower Egypt. Ears 

 rather longer. Dolour comparatively brown, matching that 

 of the Soudanese ^^orc/ow/. Postauricular white patches large. 

 Dark dorsal colour somewhat narrowed on posterior back. 



Skull practically indistinguishable from that oi jaculus. 



Dimensions of the type (measured in the flesh) : — 



Head and body 110 mm.; tail 170; hind foot 60; ear 23. 



Skull: greatest length in middle line 30*7; condylo- 

 incisive length 29 ; back of bulla to front of incisors 32*5 ; 

 iiiterorbital breadth 12'2; tympanic breadth 23; diameter of 

 bulla 13'8 ; upper molar series 5"2. 



Hah. Somaliland. Type from Berbera. 



Type. Adult male. " B.M. no. 5. 8. 7. 4. Original 

 number 28. Collected 17th May, 1905, and presented by 

 Dr. R. E. Drake-Brockman. 



LVIII. — On the Skull and Part of the Sh:eleton of n Crocodile 

 from the Middle ruihech of Swanage, icith a I)escription 

 of a neio Species (Pholidosaurus laevis), and a ^.vte on the 

 bhdl of Hyla^ochampsa. By C. W. Andrews, D.Sc, 

 F.E.S. (British Museum, Natural History). 



(Published by permission of the Trustees of the British Museum.) 



[Plate Vm.] 



The following paper consists mainly of an account of an 

 imperfect sknll and skeleton of a crocodile preserved on a 

 slab of Middle Puibeck limestone from Swanage. The 

 specimen was discovered in Keat'.s Quarry, and was obtained 

 for the British Museum by the late F. Hovenden, Esq., 

 r.L.S., F.G.S. 



The bones are much scattered, and in many cases overlie 

 one another ; the parts preserved are : — the skull, wanting 



