24 ACARIDEA. 
series of short linear swellings between the ripples of the integument of the anterior 
margin. Legs light brown. ‘The coxe bear two broad, rounded teeth. 
I found two females of this species attached to the throat and tail of a small terrapin, 
known to the natives by the name of “la Sabanera.” The figures and description are 
taken from specimens preserved in alcohol. 
Fam. ORIBATIDE. 
[Dugés, Rech. sur Pordre des Acar., 3° Mém., in Ann. Sci. Nat. sér. 2, 1. p. 21, Oribatet (1834) ; 
Kramer, Grundziige zur System. der Milben, in Arch. f. Naturg. xliii. p. 215 (1877).] 
Subfam. PTEROGASTERINA. 
[Michael, British Oribatide, pp. 64 & 202 (1834).] 
ORIBATA. 
Oribate, Latreille, Hist. nat. gén. et partic. des Crust. et des Ins. vii. p. 400 (1804); Gen. 
Crust. et Ins. i. p. 148 (1806). 
1. Oribata centro-americana, sp.n. (Tab. XV. figg. 1, 1a-1f) 
Corpus globosum, supra valde convexum, nigrum, leve, nitidum, sine sculptura microscopica ulla. Dorso-vertex 
ab abdomine non separatus, antice sulco transverso ab rostri tecto separatum. Rostrum tectum, valde 
declivum, triangulare, antice late angulatum, simplex. Lamelle breves, anguste, apice brevi, acuto, seta 
mediocris longitudinis armate.  Pseudostigmata ab desupra inspicienti non perspiciuntur. Organa 
pseudo-stigmatica longa, setiformia, apice paullulum incrassato. Tectopsdia non conspicua. Pedes rufo- 
fusci, mediocris longitudinis, setulis armati, coxis, femoribus atque tibiis posticis complanatis ; tarsus 
unguibus tribus instructus. Pteromorphe modice, antice protracte, late rotundate, plerumque corpori 
appresse, ita ut a desupra inspicienti difficulter videantur, colore rufo-fusco, semi-pellucide. Lamine 
genitales ab analibus valde distantes, iis minores, aream rotundato-pentagonam occupantes. Lamine 
anales semilunares. Palpi nihil extraordinarii exhibent. Mandibule crasse, breves, brachia chelarum 
dentibus quatuor obtusis armata. Maxille incisuram longitudinalem margini externo vicinam profundam 
prebent, que partem anteriorem marginis externi dentis instar discernit. 
Long. corp. 0°9 millim.; lat. corp. 0°8 millim. 
Hab. British Honpuras, R. Hondo, R. Sarstoon, Belize (Blancaneaur) ; GUATEMALA, 
Antigua, Guatemala city (StolZ); Panama, Volcan de Chiriqui 2500 to 4000 feet 
(Champion). 
Body globose, of a short and almost circular shape, broad and rounded behind ; 
colour black, the legs and edges of the pteromorphe brown ; texture polished, shining ; 
without any hairs or minute sculpture on the dorsal surface. Cephalothorax compara-_ 
tively broad ; rostrum simple, broadly pointed ; lamellz small and narrow, short, ending 
in a short acute point; from the anterior margin of the lamelle there project two 
comparatively short bristles on each side. Tectopedia wanting. Pseudostigmata 
short, difficult to be seen from above, projecting from the angle between the basis of 
