SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY • NUMBER 543 ...

112
male; abdomen without compressed dorsal prominence on 3rd
somite, 6th somite l 2 /3 times as long as 5th; telson with 2 pairs
of small dorsolateral spines anterior to posterior margin,
anterior pair arising at about mid-length; eye with cornea
hemispherical, not produced distally; antennular peduncle with
1 distolateral spine on basal segment, antennal scale about 2 2 /3
times as long as wide, lateral margin convex, distolateral tooth
not nearly reaching level of distal margin of blade; 4th thoracic
stemite without slender median process; 1st pereopod overreaching
antennal scale by at least length of chela, fingers not
pectinate on opposable margins; 2nd pereopods slightly
unequal, similar, fingers more or less than '/2 as long as palm,
carpus about '/3 as long as palm, about l 2 /3 as long as distal
width, without distal spines, merus without distal tooth on
flexor margin; 3rd pereopod with dactyl devoid of denticulate
lobe on flexor margin, but biunguiculate with minute accessory
tooth on faintly sinuous flexor margin, propodus with few
small spinules on flexor margin, not segmented; 5th pereopod
overreaching antennal scale; uropod overreaching extended
telson; maximum postorbital carapace length 9'/2 mm.
RANGE.—Known only from the type series from southwest
of Manila Bay, Philippines; 187-195 m.
126. Periclimenes galene Holthuis, 1952
Periclimenes (HarpUius) galene Holthuis, 1952c:l 1, 62, fig. 24 [type locality:
Ambon and "islet near Menado," Indonesia].
Periclimenes galene.—Bruce, 1976d:12, figs. 3, 4; 1983d:207.
DIAGNOSIS.—Integument smooth, not pitted, on lateral areas
of carapace and abdomen; rostrum not overreaching antennal
scale, tapering to slender apex, horizontal, rostral formula 0-1
+ 4-7A), epigastric tooth, if present, movable, isolated from
remainder of rostral series, situated in vertical line with hepatic
spine; carapace without supraorbital or postorbital spine,
hepatic spine fully as large as antennal spine, arising directly
posterior or slightly posterodorsad to latter, not extending
beyond anterior margin of carapace, orbital angle bluntly
lobate, not ovate; abdomen without compressed dorsal prominence
on 3rd somite, 6th somite fully twice as long as 5th;
telson with 2 pairs of dorsolateral spines anterior to posterior
margin, anterior pair arising slightly anterior to mid-length; eye
with cornea hemispherical, not produced distally; antennular
peduncle with 1 distolateral spine on basal segment; antennal
scale about 3 3 A times as long as wide, lateral margin faintly
concave, distolateral tooth not nearly reaching level of distal
margin of blade; 4th thoracic sternite without slender median
process; 1 st pereopod not reaching distal end of antennal scale,
fingers distally expanded, not pectinate on opposable margins;
2nd pereopod with fingers '/2 as long as palm, carpus 1 3 A times
as long as palm, 6'A times as long as distal width, without distal
spines, merus without distal tooth on flexor margin; 3rd
pereopod prehensile, dactyl not subdistally truncate, without
denticulate lobe on flexor margin, simple, not biunguiculate,
flexor margin regularly concave, propodus expanded subdis-
SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY
tally, with strong spines on distal flexor margin, not segmented;
uropod overreaching extended telson; maximum postorbital
carapace length fully 3 mm.
RANGE.—Eastern Africa, Indonesia, and Great Barrier Reef
of Australia; associated with hydroids.
127. Periclimenes gracilis (Dana, 1852)?
Anchistia gracilis Dana, 1952a:25; [type locality: Sulu Sea]; I952b:578; 1955,
pi. 37: fig. 5.—Bruce and Svoboda, 1984:97.—Bruce, 1989b:180, fig. 4B.
DIAGNOSIS.—Integument smooth, not pitted, on lateral areas
of carapace and abdomen; rostrum not overreaching antennal
scale, palaemonoid, horizontal, rostral formula 0 + 5-6/1,
posteriormost tooth not isolated from remainder of dorsal
rostral series, situated anterior to level of hepatic spine;
carapace without supraorbital or postorbital spine, hepatic
spine arising posteroventral to antennal spine, not extending
beyond anterior margin of carapace; abdomen without compressed
dorsal prominence on 3rd somite; eye with cornea
hemispherical, not produced distally; antennular peduncle with
1 distolateral spine on basal segment; antennal scale with
distolateral tooth not nearly reaching level of distal margin of
blade; 1 st pereopod overreaching antennal scale; 2nd pereopod
with fingers about x li as long as palm, carpus about '/3 as long
as palm, about 1 ] h times as long as distal width, with 2 distal
spines, merus with distal tooth on flexor margin; 3rd pereopod
with dactyl not subdistally truncate, without denticulate lobe on
flexor margin, biunguiculate (?), flexor margin somewhat
sinuous, propodus with spinules on flexor margin, not
segmented; postorbital carapace length about 3'/2 mm.
RANGE.—Known with certainty only from the type locality
in the Sulu Sea.
REMARKS.—This species has not been satisfactorily identified
with any current pontoniine concept. It is very possible, as
suggested by Bruce and Svoboda (1984:97) and by Bruce
(1989b: 180), that Anchistia gracilis Dana, 1852 (= Periclimenes
gracilis), is a senior synonym of HarpUius depressus
Stimpson, 1860 (= Harpiliopsis depressa). As illustrated by
Dana, the former species differs from the latter in having only
one tooth, rather than two or three, on the unusual contour of
the ventral margin of the rostrum, and apparently in having the
dactyl of the third pereopod biunguiculate, rather than simple
with double, stout, subdistal setae. In support of that conclusion
is the not unusual dentition of the incisor process of the
mandible described and illustrated by Dana (1852b:578 and
1855, pi. 37: fig. 5d) (see illustration of mandible of H.
depressa in Holthuis, 1952c, fig. 90a).
128. Periclimenes grandis (Stimpson, 1860)
Anchistia grandis Stimpson, 1860:39 [type locality: Amami O Shima, Ryukyu
Islands].
Periclimenes vitiensis Borradaile, 1898:383 [type locality: Viti Levu, Fiji
Islands].—Bruce. 1978f:266, fig. 9.
Periclimenes (Ancylocaris) grandis.—Kemp, 1922:210, figs. 58, 59, pi. 7: fig.