Brachyura of the Pacific coast of America, Brachyrhyncha: Portunidae, p. 49 |
Save page Remove page | Previous | 53 of 160 | Next |
|
small (250x250 max)
medium (500x500 max)
Large (1000x1000 max)
Extra Large
large ( > 500x500)
Full Resolution
All (PDF)
|
This page
All
|
Loading content ...
NO. 1 GARTH AND STEPHENSON : PORTUNIDAE 49
region with inner supraorbital lobes bearing a short ridge ending in a
tooth; inner supraorbital fissure open. Suborbital tooth prominent,
sharp in adults. Anterolateral teeth all sharp; first large, second to eighth
increasing in width; ninth relatively short, ca. twice length of eighth in
adults, longer {ca. three and one-half times) in smaller specimens.
Chelipeds with carinae of upper and outer surface of hand smooth or
finely granular, otherwise separating upper and outer surfaces with large,
sharp granules; inner surface with barely recognizable carina. Male
abdomen with border of penultimate segment concave, narrowest part
near middle; ultimate segment ca. one and one-half times as long as
broad, ca. one-third length of penultimate, borders convex, tip rounded.
Male first pleopod long, thin, especially near tip, not quite reaching ultimate segment of abdomen, sinuously curved, and with tip scarcely flaring; inner surface bearing, well back from tip, from four to eight moderately long, forwardly directed bristles; outer surface with recurved
spines beginning well forward of bristles of inner surface and continuing
about one-third way down appendage.
Material examined: 189 specimens from 57 stations (See Table 10).
From San Quintin Bay, west coast of Lower California, and Cholla Bay,
Gulf of California, to La Paz Bay, west side, and Santa Barbara Bay,
east side, Gulf of California, Mexico, from shore to 10 fathoms.
Measurements: Males from 13.5 x 30.7(22.6) to 80.8 x 154.5
(138.5) mm, females from 10.0 x 22.9(17.8) to 72.2 x ca. 140
(122.4) mm, ovigerous females from 57.3 x 108.4(95.1) to 65.5 x
123.0(108.7) mm, young from 6.3 x 14.0 (10.4) mm. Young smaller
than this difficult to identify to species.
Color: In life: Carapace mottled greenish yellow to brownish green,
sometimes with dark spot on center of orbit and dark green areas roughly
outlining epibranchial ridge. Arms generally greenish yellow to greenish
brown, wrist articulations purple red. Hand with blotch at level of
finger articulation, this blue-green in smaller and purple in larger
specimens. Similar internal blotch purple throughout. Inner surface
hand and fingers centrally white to pale blue, dorsally purple to red-
purple, and ventrally blue to purple-blue. Cheliped colors most vivid in
largest male. (W. Stephenson, based on 2 males, 2 females, and 6
young from Las Animas Bay and off SE end of Tiburon Island, Gulf of
California, R. Lavenberg, collector).
Object Description
Description
| Title | Brachyura of the Pacific coast of America, Brachyrhyncha: Portunidae, p. 49 |
| Type | texts |
| Format (imt) | image/tiff |
| Contributing entity | University of Southern California |
| Filename | AHF-PUB-MMB-01~053.tiff |
| Full text | NO. 1 GARTH AND STEPHENSON : PORTUNIDAE 49 region with inner supraorbital lobes bearing a short ridge ending in a tooth; inner supraorbital fissure open. Suborbital tooth prominent, sharp in adults. Anterolateral teeth all sharp; first large, second to eighth increasing in width; ninth relatively short, ca. twice length of eighth in adults, longer {ca. three and one-half times) in smaller specimens. Chelipeds with carinae of upper and outer surface of hand smooth or finely granular, otherwise separating upper and outer surfaces with large, sharp granules; inner surface with barely recognizable carina. Male abdomen with border of penultimate segment concave, narrowest part near middle; ultimate segment ca. one and one-half times as long as broad, ca. one-third length of penultimate, borders convex, tip rounded. Male first pleopod long, thin, especially near tip, not quite reaching ultimate segment of abdomen, sinuously curved, and with tip scarcely flaring; inner surface bearing, well back from tip, from four to eight moderately long, forwardly directed bristles; outer surface with recurved spines beginning well forward of bristles of inner surface and continuing about one-third way down appendage. Material examined: 189 specimens from 57 stations (See Table 10). From San Quintin Bay, west coast of Lower California, and Cholla Bay, Gulf of California, to La Paz Bay, west side, and Santa Barbara Bay, east side, Gulf of California, Mexico, from shore to 10 fathoms. Measurements: Males from 13.5 x 30.7(22.6) to 80.8 x 154.5 (138.5) mm, females from 10.0 x 22.9(17.8) to 72.2 x ca. 140 (122.4) mm, ovigerous females from 57.3 x 108.4(95.1) to 65.5 x 123.0(108.7) mm, young from 6.3 x 14.0 (10.4) mm. Young smaller than this difficult to identify to species. Color: In life: Carapace mottled greenish yellow to brownish green, sometimes with dark spot on center of orbit and dark green areas roughly outlining epibranchial ridge. Arms generally greenish yellow to greenish brown, wrist articulations purple red. Hand with blotch at level of finger articulation, this blue-green in smaller and purple in larger specimens. Similar internal blotch purple throughout. Inner surface hand and fingers centrally white to pale blue, dorsally purple to red- purple, and ventrally blue to purple-blue. Cheliped colors most vivid in largest male. (W. Stephenson, based on 2 males, 2 females, and 6 young from Las Animas Bay and off SE end of Tiburon Island, Gulf of California, R. Lavenberg, collector). |
| Archival file | hancockunpub_Volume20/AHF-PUB-MMB-01~053.tiff |
