Scudder.] 298 [April 27, 



nius it is scarcely one fifth of the same. The lobe differs in being 

 much broader at the tip — one half as broad again as the base — and 

 in being less curved inward. 



Right clasp : The blade differs from that of iV. Ennius in being 

 generally broader and in tapering only from beyond the middle of 

 the apical half. The lobe is similar but rather broader on the basal 

 half; the apical half is also much broader — twice as broad as in N. 

 Ennius, and more than one half as broad as the base of the lobe — 

 and subspatulate in shape, broadly rounded at the tip. 



Southern States. 



GROUP VI. 



Upper organ: Crest elevated and surmounted by a horseshoe- 

 shaped, infundibuliform, spiculiferous ridge; hooks separate, large 

 and rather stout; tooth as in Group iv. Clasps : Basal process of left 

 blade consisting of a long and slender finger parallel to the blade, 

 armed at apex and sometimes on upper edge; upper and hind process 

 of left lobe prominently developed. 

 ITisoniades Propertius nov. sp. Fig. 11. 



Upper organ : Main body rather short, high and slender. Poste- 

 rior extremity greatly elevated, the crest forming a half funnel-shaped, 

 appressed and gibbous, transverse plate, facing backward and a little 

 upward, and armed with little spicules, which on the margin become 

 very long curving bristles ; anteriorly it is supported on either side by 

 a thin, high, compressed ridge, running a long distance forward. 

 Hooks small, stout, strongly curved, pointed, often with secondary 

 denticles near the base, a little divaricate, their bases widely distant 

 and connected by a nearly straight edge, from the middle of which 

 depends a small, smooth, transversely oval, appressed tooth, bending a 

 little forward; at the extreme base of the hooks, on either side, is a 

 recurrent, rather long and slender, blunt denticle, directed downward 

 and a little outward and forward. Arms rather slender, tapering 

 slightly, directed downward and a little forward, at bottom bent 

 abruptly at less than a right angle, a little beyond which they expand 

 and unite beneath, supporting the inferior armature, consisting of a 

 broad, quadrate, gibbous patch of raised points. 



Left clasp : Main body large, broad and long, increasing but little 

 in width, quite gibbous, longitudinally nearly straight. Blade exces- 

 sively long and slender, the outer portion so twisted as to be nearly 

 horizontal and uppermost, and in this position is sinuous and directed 



