Spinoui dorul 6n 



GLOSSARY OF TECHNICAL TERMS. 



Abdomen. Belly. 



Abdominal. Pertaining' to tbe belly. 



Actinosts. A series of bones at the bases of the pectoral rays. 



Acuminate. Tapering gradually to a point. 



Acute. Sharp-pointed. 



Adipose. Fleshy or fatty. Applied to Miiall rayless tins, aud to eyelids. 



Adpressed. Pressed against the body. 



Aii-bladder. A sac filled with gas, lying beneath the backbone. 



Anal. Pertaining to the anus or the Anal fin. 



Anal Fin. The fin on the median line behind the vent. 



Ankylosed. Grown firmly together. 



Anterior. Relating to the front portion. 



Antrorse. Turned forward. 



Anus. The external opening of the intestine; the vent. 



Approximate. Placed close together. 



Asperity. Roughness of surface. 



Asymmetrical. Without symmetry. 



Axillary. Pertaining to the axilla or upper angle of the pectoral fin. 



Barbel. An elongated fleshy projection, usually about the head. 



Basal. Pertaining to the base; at or near the base. 



Bicuspid. Having two cusps or points. 



Bifid. Cleft in two. 



Bifurcate. Forked. 



Branchiae. Gills; respiratory organs of fishes. 



Branchial. Pertaining to the gills. 



