18 MESSRS. MURIE AND MIVART ON THE 
convex anterior (upper) border of the scapula’, and is inserted into the hyoid just 
external to the insertion of the sterno-hyoid. There is no median tendon; and the 
triangles of the neck are long, each with an acute angle. 
In Lemur varius it has been figured by Cuvier, pls. 68 and 69, fig. 1, e. 
In Galago ailenii the omo-hyoid is fairly represented towards its attachment to the 
hyoid, but as it leaves the scapula it is very closely applied to the anterior (inferior) 
margin of the levator anguli scapule. It isa broad and distinct strip of muscle in Galago 
garnettii and in G. crassicaudatus (PI. III. figs. 5 & 6, and Pl. IV. figs. 13 & 14, O.h). 
It is strong and without median tendon in Loris gracilis* and also in Nycticebus tar- 
digradus*. ; 
In Tarsius* it is double-bellied and round near the hyoid. 
In Cheiromys it is as in Lemur, according to Owen ®. 
The Dicasrric is formed of two thick fleshy bellies with a long and strong median 
tendon. It arises in common with the stylo-hyoid, and has a broad insertion into the 
middle third of the inner side of the inferior border of the horizontal ramus of the 
mandible. 
Meckel® also says that in Lemur mongos and L. albifrons the fibres of the anterior 
belly are arrested about the middle of the horizontal branch of the lower jaw. Indi- 
cated in L. varius by Cuvier, pl. 68. fig. 1, ¢. 
The conditions found in Lemur obtain in Galago crassicaudatus (Pl. 1V. fig. 11, Di.) 
and in G. allenii, where its anterior belly is rather the stronger one (PI. III. fig. 5, Dé 
and Di*, the latter having a portion of the anterior belly removed to show the genio- 
hyoid muscle). 
In Nycticebus tardigradus’ it is double and with a strong median tendon. 
Figured by Cuvier in his sixty-seventh plate, fig. 2, ¢ (Loris gracilis). In this species 
S. van der Kolk found a rudimentary tendon’. 
In Perodicticus® the posterior belly is short and thick, the anterior one thinner. 
Attachments the same as in Z. catta. This is also the condition in Tarsius”. 
The anterior bellies of the digastric are closely blended together in Cheiromys", and 
the posterior belly of each muscle is composed of two fasciculi of fleshy fibres. 
The Myto-nyor is flat and strong. Its origin is from the body of the hyoid bone, 
and insertion into the horizontal ramus and mylo-hyoid ridge of the mandible. 
In Lemur varius it is obscurely traced in pl. 68. fig. 1,7, of Cuvier’s ‘ Recueil.’ 
Shown on the left side in Galago crassicaudatus (P1.III. fig. 5, My.h). 
In Loris gracilis* the mylo-hyoid is found between the anterior fascicles of the 
digastric muscle. 
As Meckel observes (op. cit. vol. viii. p. 770). * Indicated by Cuvier in this species, 1. c. pl. 67. fig. 2, ¢. 
3 P.Z.8. 1865, p. 243. 4 Loc. cit. p. 48, tab. 4. fig. 1. no. 7. 5 Loe. cit. p. 58. 
§ Anat. Comp. vol. vill. p. 752. 7 Pp. Z. 8. 1865, p. 241. 8 Loc. cit, p. 44. 
® Lor. cit. p. 25. Loc, cit. p. 34, tab. 5. fig, 13, 7. 1 Loe, cit. p. 58. 
