XVI CONTENTS 



Figure Page 



506. Metatarsal and tibia of Eotitanops major 599 



507. Restoration of Eoiitmiops horealis 600 



608. Atlas of Eocene titanotheres 601 



509. Types of scapula in middle Eocene titanotheres 602 



510. Tj'pes of fore limb in Eocene and Oligocene titanotheres 603 



511. Characteristic details of radius and ulna in middle and upper Eocene titanotheres 604 



512. Manus of lower and middle Eocene titanotheres 605 



513. Comparison of the riglit scaphoid in middle Eocene titanotheres 605 



514. Terminal phalanges of the manus in middle Eocene titanotheres and amyuodonts 605 



515. Progressive graviportal adaptation in the pelvis of Eocene and Oligocene titanotheres ■ 606 



516. Femora and tibiae of middle Eocene titanotheres 609 



517. Distal end of the femur in Manteoceras and Amynodon 610 



518. Angulation of the knee joint: relation of patellar facet to long axis of femur * 611 



519. Inner side view of left fibula of Palaeosyops, Limnohyops, and Brontotherium 611 



520. Comparison of pes in four species of middle Eocene titanotheres 613 



521. Astragali of Eocene titanotheres 614 



622. Calcanea of Eocene titanotheres 615 



523. Left ectocuneiform tarsi of lower and middle Eocene titanotheres j 615 



524. Principal measurements of the carpus and tarsus 615 



525. Humerus, radius, and ulna of Limnohyops monoconus? 615 



526. Left manus, radius, and ulna of Mesatirhinus petersoni 616 



527. Manus, radius, and ulna of Limnohyops monoconus 616 



528. Right scaphoid of Palaeosyops sp. and Limnohyops monoconus 617 



529. Left hind limb of Limnohyops monoconus 618 



530. Right pes of Limnohyops monoconus? 618 



631. Ventral surface of sacrum of Limnohyops laticeps 618 



632. Right OS innominatum of Limnohyops laticeps 619 



533. Pelvis of Palaeosyops major 619 



534. Right femur and tibia of Palaeosyops major 620 



635. Astragalus and calcaneum of Palaeosyops major 620 



536. Composite mounted skeleton of Palaeosyops leidyi 621 



537. Manus of Palaeosyops leidyi 622 



538. Pelvis of Limnohyops 624 



539. Pelvis of Palaeosyops cf. P. leidyi 624 



640. Left pes of Palaeosyops leidyi 626 



641. Relations of facets of the astragalus and calcaneum in Palaeosyops 626 



542. Atlas of Palaeosyops robustus 627 



543. Atlas and axis of Palaeosyops leidyi? 627 



544. Cervicals and dorsals of Palaeosyops robustus 627 



645. Left scapula of Palaeosyops robustus 627 



546. Bones of forearm of Palaeosyops 628 



647. Left astragalus of Palaeosyops copei? 629 



648. Fore limb of Palaeosyops copei? 629 



649. Left manus of Palaeosyops copei? 629 



550. Right hind limbs of Palaeosyops major and P. copei? 630 



551. Atlas of Manteoceras manteoceras 632 



562. Seventh cervical vertebra of Manteoceras manteoceras compared with that of Palaeosyops leidyi 633 



553. Left humerus of Manteoceras manteoceras 633 



554. Right manus of Manteoceras manteoceras 633 



655. Pelvis of Manteoceras? 1 634 



556. Femora and tibiae of Manteoceras manteoceras 635 



557. Left astragalus of Manteoceras manteoceras 635 



558. Restoration of the skeleton of Mesatirhinus petersoni 637 



559. Restorations of Mesatirhinus petersoni and Palaeosyops leidyi 637 



660. Atlas of Mesatirhinus megarhinus * 638 



561. Humerus of Mesatirhinus megarhinus 638 



562. Radius and ulna of Mesatirhinus petersoni 638 



563. Left forearm and manus of Mesatirhinus petersoni? 639 



564. Right manus and fragments of radius and ulna of Mesatirhinus petersoni 639 



565. Left manus, radius, and ulna of Mesatirhinus petersoni? 639 



566. Right scaphoid of Mesatirhinus and Manteoceras 639 



567. Right manus of Mesatirhinus petersoni? 641 



568. Left femur and tibia of Mesatirhinus petersoni? 642 



569. Left pes of Mesatirhinus petersoni? 642 



570. Left astragali of Mesatirhinus petersoni? 642 



571. Left entocuneiform tarsi of Palaeosyops and Mesatirhinus 642 



572. Pes referred to Mesatirhinus 644 



573 Pes of Meiarhinus cf. M. earlei 644 



