26 SOLENODON PARADOXUS. 
anterior to the origin of the pectineus. This muscle is thus closely similar to 
that of Erinaceus, Centetes, and Myogale, having apparently much the same 
proportions, origin, and attachment. In Potamogale and Gymnura it is very 
much larger in relative size and extent of origin, and is remarkable in the latter 
on account of its insertion upon the lesser trochanter together with the psoas 
magnus. 
The gluteus maximus (Plate 6, fig. 1, c) arises as a thin muscular sheet by 
tendinous fibers along the dorsal border of the ilium and the dorsal spines from 
the fourth lumbar to the first caudal vertebra. A very distinct and separate 
portion of this muscle (Plate 6, fig. 1, m) arises from the anterior tuberosity of the 
ilium, just back of its dorso-lateral edge and passes postero-ventrally to join the 
anterior edge of the main mass of the maximus about a centimeter dorsal to the 
common tendinous insertion into the prominent crest below the great trochanter 
and some 15 mm. from the head of the femur. This peculiar second head may 
be an anomaly. Dobson does not mention it in his account of the muscles of 
Solenodon cubanus. In Gymnura the gluteus maximus is described as having 
a continuous origin ‘from the whole anterior margin of the ilium,” a condition 
from which that in Solenodon just described might readily be derived. 
The gluteus medius (Plate 6, fig. 1, 6, n) arises as in Gymnura, Erinaceus, 
and apparently Centetes, from two heads, here, however, with difficulty dis- 
tinguishable, from the entire outer face of the anterior portion of the ilium as 
far back as the level of the third sacral vertebra. The more anterior part is 
thick and fleshy; it inserts by tendon on the antero-dorsal portion of the great 
trochanter. The more posterior division inserts somewhat more distally on the 
posterior part of the great trochanter. The great sciatic nerve takes exit at the 
hinder margin of the first part of this muscle and is slightly overlapped by 
the second. 
The gluteus minimus (Plate 6, fig. 1, a) is small and flat, from an origin about 
14 mm. in length on the ischium beginning just above the acetabulum. It is 
inserted by tendinous fibers on the great trochanter, entero-posteriorly to the 
two other glutei. This muscle agrees with that of Gymnura in its more posterior 
origin; in Erinaceus it arises from the ilium. 
The rectus femoris (Plate 6, fig. 1, 2) is from a short tendinous origin some 
4 mm. long from the postero-ventral margin of the ilium just anterior to the 
acetabulum. It is inserted on the antero-internal edge of the patella. 
The vastus externus (Plate 6, fig. 1, k) has a long origin from the great tro- 
chanter and the trochantal ridge nearly to the distal end of the femur, and 
