Alpheus dolerus Banner 1956

Alpheus dolerus A.H. Banner, 1956

Alpheus dolerus A.H. Banner, 1956:362, fig. 21 [type locality: Saipan, Mariana Islands].—D.M. and A.H. Banner, 1982:205, fig. 63.

DIAGNOSIS.—(Edwardsii Group). Body not unusually compressed or setose; rostrum acute, not overreaching distal margin of 1st antennular segment, dorsal carina rounded, not extending posteriorly beyond orbital hoods, base not abruptly delimited from adrostral furrows; carapace without median tooth or tubercle on gastric region, without flattened teeth overhanging posterior ends of adrostral furrows, anterior margin between rostrum and orbital hood unarmed, narrowly concave, orbital hood unarmed but with stiff seta on anteromesial margin, adrostral furrows shallow; 2nd antennular segment twice as long as wide; basal antennal segment (basicerite) armed with small acute tooth; antennal scale with lateral margin sinuous, distolateral spine not unusually stout, overreaching distally tapered blade; major chela somewhat compressed, 2 times as long as wide, dactyl not double-ended, bearing well-developed, distally convexly oblique plunger, unarmed either side of dactylar articulation, without distinct longitudinal carina near margin proximal to fixed finger, with “saddle” on palm proximal to adhesive plaque, with distinct shoulder proximal to but not overhanging “saddle,” with heavy, rounded shoulder on opposite margin proximal to fixed finger, palm without sharp ridge on mesial surface subparallel with “dorsal” margin; minor chela about 3 times as long as wide, dactyl subequal to palm in length, with proximal short row of setae in male but not truly “balaeniceps”, 2nd pereopod with proximal carpal article no longer than 2nd; 3rd pereopod with dactyl pointed, simple, propodus bearing about 12 spines on flexor margin, carpus and merus unarmed, ischium with strong movable spine; maximum carapace length to base of rostrum about 7 mm.

RANGE.—Somalia, Madagascar, Philippines and Australia eastward to the Society Islands [Hawaii, according to D.M. Banner, pers. comm.]: in coral heads to a depth of 4 meters.

*23. Alpheus edamensis De Man, 1888

Alpheus Hippothoe var. edamensis De Man, 1888a:518 [type locality: the type series was collected at 2 Indonesian localities: “Pulo Edam” (= Pulau Damar-Besar) off Djakarta, Java, and “Amboina” (= Ambon)]

Alpheus acanthomerus Ortmann, 1890:474, pl. 36: fig. 12 [type locality: Tahiti].

Alpheus edamensis D.M. and A.H. Banner, 1982:188, fig. 57.

DIAGNOSIS.—(Edwardsii Group). Body not unusually compressed or setose; rostrum sharp, reaching level of distal margin of 1st antennular segment, dorsal carina rounded, not extending posteriorly beyond orbital hoods, base not abruptly delimited from adrostral furrows; carapace without median tooth or tubercle on gastric region, without flattened teeth overhanging posterior ends of adrostral furrows, anterior margin between rostrum and orbital hood unarmed, slightly concave near rostrum, orbital hood unarmed, adrostral furrows moderately deep; 2nd antennular segment nearly twice as long as wide; basal antennal segment (basicerite) armed with acute lateral tooth; antennal scale with lateral margin strongly concave, distolateral spine stout, overreaching narrow blade; 1st pereopods with merus armed with acute distal tooth on inferior flexor margin, major chela somewhat compressed, about 2 times as long as broad, dactyl not noticeably curved in longitudinal plane, not double-ended, having well-developed plunger, palm without prominent longitudinal carina near margin proximal to fixed finger, with “saddle” proximal to adhesive plaque, proximal shoulder rounded, not overhanging “saddle,” shoulder proximal to fixed finger strong, rounded, slightly projecting; minor chela about 3 times as long as wide, dactyl slightly longer than palm, not “balaeniceps” in either sex; 2nd pereopod with proximal carpal article slightly shorter than 2nd; 3rd pereopod with dactyl pointed, simple, propodus bearing 16 spines on flexor margin, carpus with acute tooth each side of distal margin, merus with acute tooth at distal end of flexor margin, ischium with movable spine; maximum carapace length to base of rostrum 17 mm.

MATERIAL.—PHILIPPINES. Port Palapag, Samar [12°38′N, 125°01′E] 3 Jun 1909: 1 male [11.0]. Batan Island [13°15′N, 124°00′E]; tide pool; 5 Jun 1909: 1 ovig female [12.5].

INDONESIA. Great Tobea, Selat Butung, Celebes [4°33'S, 122°42′E]; tide pools; 15 Dec 1909: 1 male [9.3].

RANGE.—Red Sea, Madagascar, Réunion, Seychelles, Mauritius, Malaya, Thailand, Indonesia, Philippines, Ryukyus, Fiji, Samoa, Society Islands; intertidal to 50 meters.

MATERIAL.—PHILIPPINES. Upper reef, inside Dumurug Point, Port Cataingan, Masbate [11°57′N, 124°03′E]; 2–3 m; sand, scattered clumps of staghorn coral; 19 Apr 1908 (1500–1600); dynamite: 6 males [7.0–10.9] 1 ovig female [9.1]. Chase Head, Endeavor Strait, Palawan [11°01′N, 119°18′E]; 2 to 4 mm; coral, sand; 22 Dec 1908 (1400–1600); dynamite (3 shots): 1 ovig female [9.0]. Port Gubat, southeastern Luzon [12°55′N, 124°09′E]; tide pool; 23 Jun 1909 (1300–1700): 1 male [12.6].

RANGE.—Probably from Red Sea and eastern and South Africa to Thailand, Philippines, Indonesia, Australia, and Caroline Islands (not yet known from Central Pacific islands east of Truk or New Zealand); intertidal under rocks to 25 meters.