143 (Eso 



Oculi distantes. — Eyes when separated by the 

 brow. (L. oculus, and dis, separation, and sto, 

 to stand.) 



Oculi nudi. — Naked eyes, eyes without hair, marks, 

 or covering. (L. oculus, and nudus, naked.) 



Oculi pilosi. — Eyes which have the margins of 

 separation thickly set with hair. (L. oculus, 

 and pilus, hair.) 



Oculi simplices. — Ocelli, simple eyes. — (L. oculus, 

 and simplex, simple.) 



Odoratus. — (Scent.) An undefined sweet smell. 

 (L., sweet smelling.) 



(Enocytes. — Large, yellowish cells, situated on each 

 side of the abdomen (rarely found in the thorax) 

 and held in place by the trachea. They are 

 associated with the blood and fat. (Wielo- 

 wiejski.) (Gr. oinos, wine, and kustis, a cyst.) 



(Enocytes. — Glandular cells arising in segmental 

 clusters from the ectoderm of the embryo just 

 behind the tracheal invaginations. In the 

 adult they are very small, and scattered about 

 among the fat cells. Their function is not 

 exactly kno\vn. (Gr. oinos, and kustis.) 



CEruginous.— Bright green. (L. cerugo, rust of 

 copper, verdigris.) See -^ruginous. 



(Esophageal valve. — ^An invagination of the fore- 

 stomach which projects into the cavity of the 

 mid-intestine. (Schneider.) 



A tubular prolongation of the posterior end 



