~b~ 
ageal musculature is well developed. There is not much pigmented matter among the 
muscles of the oesophacus. 
NERVE-RING. The well developed nerve-ring surrounds the ocesophagus somewhat 
@quarely and there are obvious werve celle both in front of and behind it. 
INTESTINE. The yellowish intestine, which becomes at once three-fourths as wide 
ag the body, is thick walled with a moderatiély obvious lumen, but with no distinctly 
refractive lining. Varther back the lining of the intestine becomes wore refractive, 
though in the specimen under sxinitation. the lumen is not readily ia Sn haan ir 
that is to gay the walle of the SUeNLANe, when wiowsd in profile lie in Santect with 
@ach other. ‘Tie iotevsine to mis up of celle of auch @ size that probably about 
Six are presented in each cross seétion. These cells contain nunbiious prewales oF 
varkble size, the seteani of which ere considerably wider than the annules of the cut- 
icle. There appears to be a sort of collar between the oesophagus and the inteetine, 
the principal constriction peeng tn frock of the collier. 
TAIL. The tail ie sonsid from in front of the anus end tapers more rapidly just 
behind the anus than farther back. It is ahort and blunt, being at the terminus wb 
truncate and about one-eighth as wide as at the anus. There is no spinneret. The 
cuticle on the terminus is a little thicker than it is farther forward. the contour 
of the terminal portion is a little more distinetly erenate than is the reeset of the 
boty; The anus ie slightly depressed, and from it the rectum, which is considerably 
longer Shan the anal body dinmeter, and appeere to be about as long ae the tail, ex- 
tends inward and more directly forward than ueual. | : 
On @ach side of the tail nvar the beginning of the middle third there is a cush- 
ion~like elevation (phasmid) the main portion of saei=ef which seems to be a thicken- 
ing of the cuticle. These are lateral, or a littie dorsad of lateral. When brought 
into optical section they are seen to constitute a rather distinct bree or altera- 
tion in the cutialar and adjacent tissues; the cuticula is et this point slightly 
Yaised, while at the same time the contour of the body wall under the subcuticle is 
Slightly depressed. Ags thefoceur on the larvae it is presumed thet they are not 

