Harriman Alaska series . ndslightly curved, a little higher than wide, the lower part laterally com-pressed, in length about one fourth the remainder of the carapace. The 126 RATHBUN lateral carina extends backward from the orbital sinus. There is a strong hepatic spine at the end of a short carina ; also a spine at the outer angle of the orbit and an antennal spine. Eyes very large, hemispherical, their inner faces flat and contiguous, the carinae covering nearly all the outer face. Antennules rather slender ; the scale at base is small, falcate, andacuminate, the second segment about oneand
Harriman Alaska series . ndslightly curved, a little higher than wide, the lower part laterally com-pressed, in length about one fourth the remainder of the carapace. The 126 RATHBUN lateral carina extends backward from the orbital sinus. There is a strong hepatic spine at the end of a short carina ; also a spine at the outer angle of the orbit and an antennal spine. Eyes very large, hemispherical, their inner faces flat and contiguous, the carinae covering nearly all the outer face. Antennules rather slender ; the scale at base is small, falcate, andacuminate, the second segment about oneand a half times as long as the third ; theflagella both exceed the antennal scale,the inner is only a little longer than theouter. The antennae have a slender spineat the outer base of the scale, which isnarrow-oblong and about three fourths as., long as the carapace (rostrum excluded) ; FIG. 66. Crangon abyssorum. S (X 2). Station 3603. a. Dorsal view of anterior the blade is rounded at the end, and b. Side view of rostrum. part of carapace, and dorsal spines, c. Acide. d. Chela. the spine projects beyond it ; the pedunclereaches to the distal third of the scale, its last joint is very slender, theflagellum is about as long as the body. The maxillipeds are slender and exceed the scale by nearly half thelength of the terminal segment. The first pair of feet do not reach theend of the scale. The merus has a small superior terminal spine. Themanus widens a little distally ; its length is three times its width measuredat the inner base of the spine ; the dactylus is more longitudinal thantransverse. The second and third pairs of feet are equally filiform anddelicate ; the second reaches to the middle or beyond the middle of thepalm of the first ; the third reaches beyond the antennal scale ; the fourthpair also exceeds the scale ; the fifth pair is a little shorter. In the malethe sternum has a median carina with a small spine on each segment. The fifth segment of the abdomen has a l
Size: 1846px × 1354px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthormerriamc, bookcentury1900, bookdecade1900, bookyear1904
