N,YCTINOMUS TENUIS, 
Ord, III 1 !* Carnassiers, Cmier. 1™ Famille. Les Cheiropteres. 
Ord. I. Primates, Linn. Syst. 
Ord. XI. Volitantia, Illlger. Fam. 32, Chiroptera. 
NYCTINOMUS, Geoffr. Desm. 
Vespertilio, Buchanan* Commerson, Hermann, 
Character essentialis. — Denies primores supra duo, magni, infra quatuor, mi- 
nimi, bifidi, oblique protrusi : molares supra exterius margine cuspidate, interius 
gradu abbreviate bituberculato emarginato: laniarii infra processu maximo 
spinaeformi aucti ; molares compressi, quinquecuspidati. Rostrum emarginatum, 
labro carnoso laxo plicato confluens. Auricula maxima?, vertice connexae, oper- 
culo obtuso rotundato, Brachia phalangesque longissima. Digiti scelidum pilis 
longis laxis obtectL 
* •* . 
Character kattjralis. — Denies primores supra duo, magni, erecti, subcontigui, 
attenuati, obsolete tetragoni, antice leviter arcuati, postice excavati, latere 
exteriore laniarios spectante obliquo ; infra quatuor, brevissimi, oblique protrusi, 
bifidi, laeiniis rotundatis obtusis, intermediis majoribus laciniisque interioribus 
longioribus* Laniarii elongati, supra leviter deflexi, trigoni, lateribus obsolete 
canalicular^ angulo interiore sectorio, gradu basilari cincti ; infra conici, basi 
maximi, approximati, processu spmseformi oblique divergente aucti, primores 
oblique antrorsum adigentes. Molares supra utrinsecus quinque; primus 
mmutissimus, acutus, simplex, vix supra gingivam conspicuus ; reliqui eom- 
plicati, margine laterali exteriore elevato, gradu interiore abbreviato, sulcis 
intermediis profundis ; secundus externe acie longissima, interne processu acuto 
simpbei instructus; tertius et quartus consimiles, margine exteriore bipartite, 
singula parte cuspidibus tribus acutis, in trigonum dispositis, gradu interiore 
bituberculato, emarginato, tnberculo interiore elatiore; quintus minor com* 
pressiusculus postice obliquatus. Infra utrinsecus quinque, compressi, superi- 
oribus multo angustiores ; primus et secundus breves, acuminata unicuspides, 
