3. RTTINA. 365 



II. Ilenipricliii (Nake), JHhrenb. Symb. Phys. ii. 

 H. Lottum, Ehrcnh. Symb. Pliys. i. 



Inhab. lied Sea. 



Observed by Dr. Riippell " swimming among the coral banks on 

 the coast of Abyssinia, near the Dalae Island." The fishermen har- 

 pooned a female, which he dissected. It was 1 feet long. 



The Arabs stated that they live in pairs or small families ; that 

 they have feeble voices, feed on ahjce, and that in February and March 

 bloody battles take place between the males, which attain to 18 feet, 

 &c. — Penny Cychpcedia, art. Whales. 



This is probably the same as the Dugong from India and AvistraUa ; 

 but I have not had the opportunity of comparing the skull and skins 

 as in that species. 



b. Teeth none. Rytinina. 

 3. RYTINA. 



Cutting-teeth, canines, and grinders none. Muzzle blunt, hps 

 double, outer upper bristly. Ears none. Eyes covered with a 

 blinking membrane. Skin covered with a thick, brittle or ea.sily 

 cracking fibrous epidermis. The fore feet with claw-Uke callosities, 

 not supported by phalanges. The tail horizontal, bifid. Teats two, 

 pectoral. Pelvic bones distinct. Stomach simple. 



Sirenia edentula seu RhytinesE, Bramlt, Symb. Strenol. 1849. 

 Manate seu Vacca marina, Steller, Acad. Petrop. Nov. Comm. ii. 294. 



1. 14. 

 Rytina, lUiger, Prodr. 141, 1811 ; Oken, Lehrb. Nat. 685 ; Wugler, 33 ; 



Beer, Me'm. Acad. Petersb. 1840, 111 ; Sirenohyia, 1849. 

 Rhytina, Brandt, Mem. Acad. Imp. Petersb. vii. 184G ; Symb. Sireno- 



loyia, 184(3. 

 Rityua, Lesson, Noav. Ebg. Antm. 155, 1842 (misprint). 

 Stellerus, Desm. ; Cavier, P. A. i. 275. 

 Hydrodamalis, Petzms. 

 ? Uystomus, G. Fischer, Zoogn. 19. 

 Nepus, Gutth. Fischer von Tf'aldheim, 

 SteUere, Cuvier, Peg. Anim. 



Dr. Knox (Cat. Prep. TVTiales, 37, 1838) shows that the substance 

 in the palate which Steller describes, and which has been mistaken 

 for teeth, is only a horny skin of the bent-down portion of the two 

 jaws, common to this animal and the Dugong. This suggestion has 

 been adopted by F. Cuvier (Cetac. 377) and Brandt in his ' Sireno- 

 logia.' The latter figiires them, and exhibits their structure ixnder 

 the microscope. This horny substance bears evidently a considerable 

 analogy to the baleen of the common whale. 



Eytina gigas. The Morsl-aia Korova. 

 Black. 



Manate seu Vacca marina, Steller, N. Act. Petrop. ii. 294. 



Tricbecus Manatus, Midi. Prodr. Z. Dan. 



Trichecus (Mauatiis) borealis, Gmelin, S. N. i. GO; Oke>i, Lehrb. Nat. 685. 



^.M 



