ANATOMY OF THE LEMUROIDEA. 79 
Figured in Galago crassicaudatus (Pl. II. fig. 3, Pl. V. fig. 22, and Pl. VI. fig. 25, @a). 
In Nycticebus tardigradus and Loris gracilis it is exceedingly small. (See woodcut, 
fig. 19. 
Hind limb between knee and ankle in the 
Slow Loris, from P. Z.8. 1865, p. 251. 
P. Popliteus. 
G. Gastrocnemius, 
S. Soleus. 
F.1.d, Flexor longus digitorum. 
F.1.h. Flexor longus hallucis. 
T.a. Tibialis anticus. 
T.p. Tibialis posticus. 
Sotevs'.—A long and narrow muscle, fleshy in the middle and tendinous at each 
end, though more so above than below. It arises from the posterior side of the head of 
the fibula, and not at all from the tibia, becomes adherent to the inner surface of the 
tendo Achillis at about the middle of the leg, and is continued down with it to the 
calcaneum, into which the two tendons have a common insertion. 
Meckel? says it arises from the whole of the fibula in Loris gracilis; and we found it 
to be attached to that bone for a considerable extent, viz. from its lower five-sixths. 
In the Grand Galago (Pl. VI. fig. 25, So) it very nearly agrees with what obtains in 
Nycticebus tardigradus*, where it is flat and rhomboidal, and without any tendon. 
Arising from the posterior margin of the head of the fibula and inner border of the 
flexor longus hallucis, it loses itself in the conjoined belly of the gastrocnemius. 
Perodicticus‘ has this muscle similarly to Nycticebus, namely, fused with the gastro- 
cnemius. 
In Tarsius* it is a long, round, spindle-shaped muscle arising from the head of the 
fibula, and joins the tendo Achillis below the muscular portion of the gastrocnemius. 
Puantaris.—A very strong muscle arising from the peroneal condyie of the femur 
in common with the head of the gastrocnemius of that side; it ends rather below the 
middle of the leg, in a strong tendon, which passes to the tibial side of the tendo 
* Anat. Comp. vol. vi. p. 421. 
! Cuvier, pl. 70. fig. 3, €. 
3 Loe. cit. p. 251, fig. 5. * Loe, cit. p. 44. ° Loe. cit. p. 76, tab. 4, fig. 7, no. 28. 
