Brachyura of the Pacific coast of America, Brachyrhyncha: Portunidae, p. 28 |
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28 ALLAN HANCOCK MONOGRAPHS IN MARINE BIOLOGY
feebly developed. Fingers short, sharp, compressed, curved. Fifth leg with
posterodistal border of merus spinulous; merus relatively short, length
ca. 1.3 times breadth. Male abdomen with ultimate segment cordiform,
about one and one-third times as long as broad, and about two-thirds
length of penultimate; penultimate segment slightly broader than long.
Material examined: 146 specimens from 22 stations (See Table 4).
From Cape San Lazaro, west coast of Lower California, and off Estero
de Tasiota, Sonora, to E of Cabeza Ballena, Gulf of California,
Mexico. From Octavia Bay to off Gorgona Island, Colombia. The distribution is discontinuous. From 17-85 fathoms (exceptionally to 150
fathoms).
Measurements: Males from 6.2 x 13.8(9.2) to 24.0 x ca. 53.5(36.6)
mm, females from 7.4 x 16.8(11.2) to 31.4 x 62.9(46.0) mm, ovigerous
females from 18.0 x 39.6(28.8) to 26.6 x 54.6(39.9) mm.
Color: In life: Mottled dark olive yellow, with ridges and marginal
teeth densely dotted with ochre red. Eyes yellow brown. Merus of
cheliped deep olive buff with light touches of dull orange red; spines
ochre tipped. Carpus and long spine pale cadmium yellow, becoming
stronger towards tip, which is white. Hand as carpus, but spine ochre
red with white tip. Movable finger dull orange yellow on dorsal surface
with two white oblong patches, on inner side pale carmine; fixed finger
very bright carmine. First three ambulatory legs deep olive buff with light
touches of orange yellow; distal portion of dactyls bright carmine. Fourth
leg light olive yellow on merus and carpus; propodus mottled orange and
pale yellow, margins red and white. Paddle dull orange basally, gradually
blending with and becoming dark ochre red distally; a white streak down
center of paddle. Ventral surface pale olive buff. (A. Petersen, of a
specimen from Espiritu Santo Island, Gulf of California)
In life: Carapace covered by hairs golden brown; uncovered generally pink or pale blue, blue especially on branchial areas. Ridges rust
red to red brown. White clear patch behind posterior mesobranchial ridge.
Following white-tipped: spine at postlateral angle of carapace, last anterolateral tooth, spines on chelipeds. Fifth leg: propodus with white
marginal bar on anterior and again on posterior margin; dactylus with
cream or white forming two anterior marginal bars, one central bar,
one posterior marginal bar, distal half of dactylus with blood red on margins. Flat anteriorly directed surface of merus of third maxilliped with
golden iridescence. (W. Stephenson, based on 4 males and 3 females (3
Object Description
Description
| Title | Brachyura of the Pacific coast of America, Brachyrhyncha: Portunidae, p. 28 |
| Type | texts |
| Format (imt) | image/tiff |
| Contributing entity | University of Southern California |
| Filename | AHF-PUB-MMB-01~032.tiff |
| Full text | 28 ALLAN HANCOCK MONOGRAPHS IN MARINE BIOLOGY feebly developed. Fingers short, sharp, compressed, curved. Fifth leg with posterodistal border of merus spinulous; merus relatively short, length ca. 1.3 times breadth. Male abdomen with ultimate segment cordiform, about one and one-third times as long as broad, and about two-thirds length of penultimate; penultimate segment slightly broader than long. Material examined: 146 specimens from 22 stations (See Table 4). From Cape San Lazaro, west coast of Lower California, and off Estero de Tasiota, Sonora, to E of Cabeza Ballena, Gulf of California, Mexico. From Octavia Bay to off Gorgona Island, Colombia. The distribution is discontinuous. From 17-85 fathoms (exceptionally to 150 fathoms). Measurements: Males from 6.2 x 13.8(9.2) to 24.0 x ca. 53.5(36.6) mm, females from 7.4 x 16.8(11.2) to 31.4 x 62.9(46.0) mm, ovigerous females from 18.0 x 39.6(28.8) to 26.6 x 54.6(39.9) mm. Color: In life: Mottled dark olive yellow, with ridges and marginal teeth densely dotted with ochre red. Eyes yellow brown. Merus of cheliped deep olive buff with light touches of dull orange red; spines ochre tipped. Carpus and long spine pale cadmium yellow, becoming stronger towards tip, which is white. Hand as carpus, but spine ochre red with white tip. Movable finger dull orange yellow on dorsal surface with two white oblong patches, on inner side pale carmine; fixed finger very bright carmine. First three ambulatory legs deep olive buff with light touches of orange yellow; distal portion of dactyls bright carmine. Fourth leg light olive yellow on merus and carpus; propodus mottled orange and pale yellow, margins red and white. Paddle dull orange basally, gradually blending with and becoming dark ochre red distally; a white streak down center of paddle. Ventral surface pale olive buff. (A. Petersen, of a specimen from Espiritu Santo Island, Gulf of California) In life: Carapace covered by hairs golden brown; uncovered generally pink or pale blue, blue especially on branchial areas. Ridges rust red to red brown. White clear patch behind posterior mesobranchial ridge. Following white-tipped: spine at postlateral angle of carapace, last anterolateral tooth, spines on chelipeds. Fifth leg: propodus with white marginal bar on anterior and again on posterior margin; dactylus with cream or white forming two anterior marginal bars, one central bar, one posterior marginal bar, distal half of dactylus with blood red on margins. Flat anteriorly directed surface of merus of third maxilliped with golden iridescence. (W. Stephenson, based on 4 males and 3 females (3 |
| Archival file | hancockunpub_Volume20/AHF-PUB-MMB-01~032.tiff |
