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Classification


USNM 1079086

Geographic Distribution

Antarctic Convergence illustration Antarctic convergence

Bathymetric Specimen Dispersal

37 individual specimens found for Lithodes murrayi.

Lithodes murrayi Henderson, 1888  Species

Synonymy

Original Description
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Original Description
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"Lithodes murrayi, n. sp. (PI. IV.).

Characters. — The carapace is broadly ovate, with the length (not including the rostrum) slightly greater than the breadth; the regions are well defined and the surface armed with broadly conical spines. The rostrum is five-spined, with a slight upward direction, the proximal part broad and terminating in two prominent diverging spines, which are directed forwards and upwards, the distal portion shorter and more slender, with its apex bifurcate, the spines thus formed being about half the size of the former pair; on the lower surface there is a large basal spine directed downwards and forwards, and at the same time slightly curved. The gastric area is swollen, with a few small tubercles scattered over its surface, and armed with four acute conical spines arranged in two rows, the anterior pair of larger size and separated by a wider interval than the posterior pair. The cardiac area is well-defined and somewhat triangular in outline, separated from the gastric area by a deep transverse sulcus; it bears on its most elevated part two spines similar to the gastric ones, and in front of these two conspicuous tubercles, a few smaller tubercles are also scattered over the region. The branchial area is moderately convex from side to side and armed with two conspicuous spines, one situated in the middle of the region opposite the anterior part of the cardiac area and larger than the other which is situated opposite the posterior part of the cardiac area; a few smaller elevations are placed near the latter, and scattered tubercles exist all over the area. The antero-lateral border possesses two spines, one external to the insertion of the ocular peduncle, the other at the antero-lateral angle. The lateral border is drawn out into about six prominent spines (excluding the antero-lateral one), a few of smaller size intervening; of these the first situated opposite the hepatic area is most prominent, indeed, this exceeds in size any other on the carapace, and is directed upwards and slightly forwards with a faint curve; a second prominent spine is placed a little in front of the first branchial spine, and a third opposite the second branchial. The posterior border possesses about six prominent spines on each side, of these the submedian pair are largest.

The eyes are of moderate size and freely movable, the corneæ well developed and oblique. The antennules have the third joint of the peduncle longer than the second, the first with a conspicuous auditory aperture on its upper surface. The second joint of the antenna! peduncle has a conical spine on its outer and distal border, the ultimate joint is twice the length of the penultimate; the flagellum is about equal in length to the carapace. The external maxillipedes are similar to those of Lithodes maia, as figured by De Haan, the internal serrated projection of the ischium being well marked. The pterygostomial area presents an anterior convexity, with a concavity immediately behind.

The chelipedes are subequal in length, but the right is somewhat stouter, the ischium has several conical spines of large size on its lower surface, the merus has a prominent curved spine on its inner border, and the carpus several on its upper and outer surfaces; the fingers are excavated internally, and have numerous tufts of bristle-like setae scattered over their surfaces. The meral, carpal, and propodal joints of the ambulatory limbs are moderately spiny on the superior and inferior borders and the posterior surface; the dactyli have several basal spines both above and below, their apices are black, acute and horny. The legs of the last pair are smooth, with the terminal portion densely pubescent.

The first abdominal segment bears two small submedian spines, the second bears a pair of large size and has a raised posterior border, the penultimate segment has two small spines on its posterior border.

The above description is taken from a male. The female is of larger size and presents the following points of difference — the rostrum is shorter, especially its terminal portion, the chelipedes are less strongly developed, the plates on the left side of the abdomen possess a few marginal spines, and the central abdominal tubercles show a tendency to become spiny; the right border of the abdomen also is armed with a series of elongated spines.

Lithodes murrayi is apparently most closely allied to Lithodes maia, but the latter species is of larger size, and the spines on the carapace are more numerous and more uniformly equal in size.

The following are the chief measurements in both sexes; —

Male

Female

Breadth of carapace

59 mm

66 mm

Length of carapace

64 mm

73 mm

Length of rostrum

23 mm

21 mm

Length of right chelipede

94 mm

96 mm

Length of first ambulatory limb

167 mm

157 mm

Length of abdomen

40 mm

61 mm

Diameter of eggs, nearly

2 mm

Habitat. — Station 145a, off Prince Edward Island; depth, 310 fathoms; bottom, volcanic sand.

Two specimens, a male and a female, the latter bearing ova, are in the collection.

I have pleasure in associating this fine species with the name of the Director of the Challenger Commission.”

(Henderson, 1888)

Specimens

Type Status Catalog No. Date Collected Location Coordinates Depth (m) Vessel
  154622 2/10/1965 South Pacific Ocean 54.4° S, 159° E 79 – 93 Eltanin R/V
  154623 2/10/1965 South Pacific Ocean 54.5° S, 159° E 86 – 101 Eltanin R/V
  1027846 11/7/1964 South Pacific Ocean 54.8° S, 129.8° W 549 Eltanin R/V
  1027852 2/10/1965 South Pacific Ocean 54.4° S, 159° E 79 – 93 Eltanin R/V
  1079086 Images Available 2/10/1965 South Pacific Ocean 54.4° S, 159° E 79 – 93 Eltanin R/V
  1109981 6/18/1968 South Pacific Ocean 54.52° S, 159° E 110 Eltanin R/V

View additional taxa  View all species collected at same locations as Lithodes murrayi