ANATOMY OF THE LEMUROIDEA. 67 
It ends in a narrow but strong tendon inserted into the prominence at the brim of 
the pelvis. 
In G. allenii the same, but only from the three upper lumbar vertebre. 
In our specimen of Loris gracilis it was either absent or only subvertebral. 
In Nycticebus it is much as in L. catta, but arises only from the second and third 
lumbar vertebree '. 
In Tarsius it is like L. catta, but is represented as bifurcating, allowing (as Bur- 
meister shows in his plate) the iliacus and psoas magnus to pass between”. 
In Cheiromys it is quite like L. catta, and not at all ill defined. 
QUADRATUS LUMBORUM.—This muscle is represented by a series of tendons with a 
very small quantity of muscular fibre, and extends backwards from the eleventh dorsal 
vertebra to the inner surface of the ilium. 
In L. varius it reaches no further forwards (higher) than the anterior edge of the last 
dorsal. In LZ. xanthomystax it springs from the third last or tenth dorsal vertebra. 
In L. nigrifrons it is like L. catta. 
Displayed in position on the one side and dragged out on the other in the partial 
dissection of Galago crassicaudatus (Pl. V. fig. 19, Q./). 
In this animal as in G. garnettii the quadratus lumborum is much as in L. catta, and 
is in close relation with the iliacus. It is composed of a series of tendons and intervening 
muscular fibre arising from the bodies and transverse processes of the last dorsal and 
three anterior lumbar vertebra. Somewhat like the spinalis dorsi, this muscle sends 
tendons backwards to the transverse processes of the two hindermost lumbar vertebre, 
and one to the crest of the ilium. 
Its attachments in Loris and Nycticebus are the two transverse processes of the 
lumbar vertebre from about the fourth downwards to the ilium. 
In Tarsius* it seems to be essentially similar; and in Cheiromys it is quite as in 
L. catta. 
b. Femoral Region. 
The Pecrinevs* arises from the so-called horizontal ramus of the pubis, external to 
the origin of the gracilis. It is inserted into the ridge leading from the tibial tro- 
chanter to the linea aspera. 
This muscle in Galago crassicaudatus is figured in Pl. V. figs. 19 & 20, Pe. 
In Loris, as Meckel says, this muscle is very strong, and there are four adductors 
besides, 
In Tarsius it is as in L. catta. Burmeister considers it the antagonist of the 
quadrator femoris’. 
1 Mivart and Murie, loc. cit. p. 248. 2 Loe. cit. p. 67, tab. 4. fig. 2. 1. 5 Loe. cit. p. 68. 
* The muscle named pectineus in Cuvier’s plate of Z. varius is evidently rather a psoas magnus. See pl. 70. 
fig. 3, ; but in Loris gracilis it is correctly marked, pl. 67. fig. 2, k. 
5 Loc. cit. p. 71, tab. 5. fig. 1. 13. 
