362 QUESTIONS. 



396. For what bird has this order been established ? 



397. General characters of the Mammalia? 



398. General structure of the backbone ? 



399. General number of cervical vertebras? 



400. Distinction between " true " and " false " ribs ? 



401. General structure of limbs ? 



402. What Mammals have no teeth ? 



403. What are the " milk-teeth ? " 



404. Describe the general groups of teeth in a Mammal. 



405. What is the " diaphragm ? " 



406. General structure of the heart and course of the circulation ? 



407. General structure of the lungs ? 



408. What is the " corpus callosum ? " 



409. What Mammals possess no external ear ? 



410. Mention some modifications of the integumentary appendages in 

 Mammals. 



411. What Mammals are without hair when adult? 



412. What are the mammary glands? 



413. What is the " placenta ? " 



414. General characters of the Monotremata? 



415. Mention the animals included in the Monotremata, and state their 

 geographical distribution. 



416. What are the " marsupial bones ? " 



417. General characters of the Marsupialia? 



418. Geographical distribution of the Marsupials? 



419. Give examples of the Marsupials. 



420. General characters of the Edentata ? 



421. Geographical distribution of the order? 



422. Leading groups of the Edentata, and their distinguishing charac- 

 ters? 



423. General characters of the Sirenia? 



424. Existing forms of the Sirenia ? 



425. General characters of the Cetacea? 



426. Give examples of the Whalebone Whales and Toothed Whales. 



427. What is the "blowing" of a Whale ? 



428. What characters distinguish the Dolphins ? 



429. Nature of the tusk of the Narwhal ? 



430. General characters of the Ungulata ? 



431. Divisions of Unyulata and their characters ? 



432. Nature and position of the horns of Rhinoceros? 



433. Characters and distribution of the Tapirs ? 



434. Characters, chief forms, and geographical distribution of the 



435. Characters and distribution of the Hippopotamus ? 



436. Characters of the Suida ? Leading forms ? 



437. General characters of the Ruminants ? 



438. Structure of the stomach in Ruminants ? 



439. Characters and distribution of Camelidce? 



440. Characters and distribution of Cervidce ? 



441. Nature of the horns of Cervidce? 



442. Characters and distribution of the Giraffe ? 



443. Characters and leading forms of the Cavicornia ? 



444. General characters and distribution of the Hyracoidea ? 



445. General characters and distribution of Proboscidea ? 



