Image from the Biodiversity Heritage Library.
Contributed by American Museum of Natural History Library.
| www.biodiversitylibrary.org
Transcription
Eye
Situated on a slight swelling - above it is one long conver furrow 18 cent. in length - & this furrow is 6 cent. above antin commissure of eye - between it & eye are two short lines ar creas below eye a crease 24 long curves - it is 5 cent below and, commissure - 2 furrows 6 cent. long run out of and. corner of eye
run from the tip down the posterin border curving obliquely off toward the anterio edge; near the base of the fin the lines run in a curve across fin from post. to and. edge. These lines are so extremely fine that it looks like solid color and can only be detected upon close examination.
The lower half of the anterio edge is light gray. The upper half " " is darker gray, the line of division being well marked.
triangular The fin is narrowly lanceolate in shape. The anterio edge is (almost straight) very slightly convex, 2. The post- erior edge swells gradually outward from the tip & until about middle of fin is reached, when it turns very gradually inward to the posterin angle which is not sharply marked. The fin is widest almost at the middle of its length and it is here that the anterio edge is thickest. From that joint the aut. edge tapers gradually toward tip until it becomes thin. The posterio edge is thin but fairly rigid until the point of greatest breadth is reached, when from there to the axilla the posterio edge is loose skin