SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY • NUMBER 543 ...

NUMBER 543 75
FIGURE 19.—Conchodytes nipponensis, male from Tilik, Lubang Island, carapace length 7.0 mm: a, anterior
carapace and appendages, dorsal aspect; b, tail fan; c, distolateral angle of lateral branch of left uropod; d, right
antennule, dorsal aspect; e, right antenna, ventral aspect;/, right 3rd rnaxilliped; g, right 1st pereopod; h, left 2nd
pereopod, extensor aspect; i, right 3rd pereopod, dactyl; j, right appendix masculina and appendix interna.
66. Conchodytes monodactylus Holthuis, 1952
Conchodytes monodactylus Holthuis, 1952c:200, figs. 96-98 [type locality; the
type series came from two localities: Kaohsiung, Taiwan, in Pinna sp., and
Lesser Sunda Islands, Indonesia].
DIAGNOSIS.—Telson with 2 pairs of dorsolateral and 3 pairs
of posterior spines; 1st pereopod with carpus and merus
subequal in length; 3rd pereopod with dactyl bearing single
distal spine and basal process well developed with minute
marginal tooth; maximum postorbital carapace length about 13
mm.
RANGE.—Singapore, Hong Kong, Amakusa Island, Japan,
Indonesia, and Australia; in pinnid bivalve mollusks.
•67. Conchodytes nipponensis (De Haan, 1844)
FIGURE 19
Hymenocera niponensis De Haan, 1844: pi. 46: fig. 8 [corrected to H.
nipponensis by plenary powers of the International Commission on
Zoological Nomenclature, 1956; type locality: Japan].
Pontonia nipponensis.—De Haan, 1849:180.
Conchodytes nipponensis.—Kemp, 1922:282, fig. 104.—Bruce, 1977e:97,
fig. 1.
DIAGNOSIS.—Telson with 3 pairs of dorsolateral and 2 pairs
of posterior spines; 1st pereopod with carpus averaging
subequal to merus; 3rd pereopod with dactyl bearing 2 strong,
divergent, spine-like teeth, basal process well developed with
small marginal tooth; maximum postorbital carapace length
perhaps as much as 15 mm.
MATERIAL.—PHILIPPINES. Tilik, Lubang Island;
[13°49'N, 120°12'E]; 14 Jul 1908: 1 male [7.0] 1 ovig female
[9.6].
RANGE.—Until reported by Bruce (1977e:97) from a single,
possibly juvenile specimen from Keppel Bay, Queensland,
Australia—on the mainland coast opposite Heron Island, from
where Bruce (1981e) recorded no less than 100 other
pontoniine species—C. nipponensis was known only from