Vol. XII. 

 i9>3 



1 Shufeldt, Osteology of Cereopsis novcB-hollandicB . 237 



Fig. 1 8. — Superior view of the skull of Cereopsis novce-hollandice. 

 From same skeleton as other figures shown on the plates. 

 Natural size. (See fig. i, Plate XXVIII., fig. 19, Plate 



XXXI.) 



Plate XXXI. 



Fig. 19. — Basal view of the skull of Cereopsis novce-hollandicB . Slightly 

 reduced. (Same skull as shown in other figures : Plate 

 XXVIII., fig. I, Plate XXX., fig. 18). Mandible removed. 



Fig. 20. — Basal view of the skull of Hymenolcermis malacorhynchus. 

 Slightly reduced ; mandible removed. Same skull as shown 

 in other figures : Plate XXVIII.. fig. 3, Plate XXX., fig. 17. 



Fig. 21. — Direct anconal aspect of the left humerus of HymenolcBmus 

 malacorhynchus . Slightly reduced ; actual length of this 

 bone in the skeleton is 8.1 cms. From the same individual 

 as furnished other bones and the skull on the plates. 

 (No. 19,024, Coll. U.S. Nat. Mus.) 



Fig. 22. — Anconal aspect of the left pectoral limb of Cereopsis novcs- 

 hollandicB. From the skeleton of the same individual as 

 shown on the other plates. (No. 19,711, Coll. U.S. Nat. 

 Mus.) Slightly reduced ; the actual length of the humerus 

 in the skeleton is 16.8 cms., it being but 15.2 cms. in the 

 figure. 



Plate XXXII. 



Fig. 23. — Left lateral aspect of the skull, including lower mandible, 

 of Tachyeres cinereus. (No. 1,818, Coll. U.S. Nat. Mus.) 

 Natural size. Collected by Dr. Tolmie on the Falkland 

 Islands. A shot-hole is seen in the occipital region, between 

 the squamosal process and the left supra-occipital foramen. 

 The bones at the middle third of the zygoma are partially 

 disarticulated. The vomer is seen arching above the 

 palatines, and the interorbital plate is entire. 



Fig. 24. — Left pectoral limb of Cereopsis novce-hollandice , from the 

 skeleton of the same individual as shown in other plates. 

 (No. 19,711, Coll. U.S. Nat. Mus.) The femur is shown 

 antero-laterally ; the tibio-tarsus on almost direct inner 

 aspect, as is also the fibula. The tarso-metatarsus and the 

 bones of pes are seen on almost direct dorsal view. Much 

 reduced. The extreme length of the tibio-tarsus in the 

 skeleton measures from apex of cnemial process to most 

 distant point on inner condyle, 16.4 cins., and the basal 

 joint of mid-toe has a length of 3.1 cms. in the skeleton of 

 this foot. 



Plate XXXIII. 



Fig. 25. — Left lateral view of the trunk skeleton and shoulder girdle of 

 Cereopsis novcs-hollandics. (No. 19,711, Coll. U.S. Nat. Mus.) 

 Very considerably reduced. For actual measurements see 

 description of fig. 15 of Plate XXX. 



Plate XXXIV. 



Fig. 26. — Right lateral aspect of the trunk skeleton and shoulder girdle 

 of Hymenolcemus malacorhynchus. (No. 19,024, Coll. U.S. 

 Nat. Mus.) Very considerably reduced. For actual measure- 

 ments see description of fig. 16, Plate XXX. 



