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USNM 1123875

Geographic Distribution

Antarctic Convergence illustration Antarctic convergence

Bathymetric Specimen Dispersal

47 individual specimens found for Neolithodes diomedeae.

Neolithodes diomedeae Benedict, 1895  Species


Original Description
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Original Description
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"Lithodes couesi, new species

This species reminds one of L. maia. The largest spines of the carapace are ­arranged about the margin; they are slender and sharp. The longest are situated at the outer orbital angles, the antennal angles, the hepatic regions, and three on the margin of the branchial regions. The spines on the intervening spaces of the margin are more numerous and much smaller. The surface of the carapace is set with short, sharp, conical spines. The gastric region is swollen and well defined. The cardiac region is barely indicated between the confluent branchial regions. The depression between the gastric and cardiac regions is very deep. The rostrum is 20 mm. long, and made up as in L. maia, but the terminal portion beyond the distal lateral branches is slender and bifid rather than bifurcate, as in L. maia; the basal branches are a little further forward. The scale is rudimentary; the spine at the outer angle is branched at the base, the branch consisting of a single short, sharp spine on the outer surface. The abdomen is without spines; the spines of L. maia are replaced by tubercles; those of the first segment are very much closer together than the corresponding spines in L. maia. The tubercles on the lower margin of the second segment are low and somewhat oblong at base; those in the center of the segment, are larger.

The chelipeds are slender and weak. The armature of the fingers of the right hand is slight; the fingers gape. The fingers of the left hand are long and slender and gape at base. The spines of the chelipeds and ambulatory legs are numerous and arranged about as in L. maia, but are shorter.

Locality and type.—At station 3329, in 399 fathoms, north of Unalaska, a single male (No. 18531, U.S.N.M.) was taken; also at station 3338, off Shumagin Bank, in 625 fathoms, three young specimens (No. 18532, ­U.S.N.M.) which I refer to this species without hesitation. The rostrum differs in being bifurcate as in L. maia. It is possible that additional specimens of the adult form might show the rostrum to be bifurcate rather than bifid."

(Benedict, 1894)


Type Status Catalog No. Date Collected Location Coordinates Depth (m) Vessel
Lectotype 18526 2/12/1888 South Pacific Ocean 42.6° S , 75.5° W 2454 Albatross R/V
Paralectotype 18527 2/11/1888 South Pacific Ocean 45.6° S , 75.9° W 1920 Albatross R/V
Paralectotype 134421 2/12/1888 South Pacific Ocean 42.6° S , 75.5° W 2454 Albatross R/V
  231425 5/9/1975 Scotia Sea 51.04° S , 42.79° W 1480 – 1545 Islas Orcadas R/V
  1027848 1/5/1966 South Pacific Ocean 53.1° S , 75.8° W 1896 – 1920 Eltanin R/V
  1079619 8/24/1963 Scotia Sea 54.8° S , 38° W 732 – 814 Eltanin R/V
  1109982 5/11/1975 Scotia Sea 53.52° S , 37.85° W 1267 – 1599 Islas Orcadas R/V
  1123875 Images Available 1992 South Atlantic Ocean     Surveyor R/V

View additional taxa  View all species collected at same locations as Neolithodes diomedeae