
Description of Female
Station 212/51, 1 female. Colour in formalin white, eyes yellowish-brown. Length 6 mm., depth 1 mm., width 2 mm.
Antennae. First: Length, 1 mm. Peduncle ½ length flagellum; 1st segment twice length 2nd and 3rd, fine bristles inferiorly. Flagellum of 2 segments, 1st nearly as long as head and 1st 2 segments of body; broadly ovate, somewhat truncate inferodistally, small single setae on both margins, margins finely bristled inferodistally to apex, 2 tracts of long flaccid sensory setae horizontally along surface in rows of 2 and 3, the superior tract nearly entire length of segment; 2nd segment has a few end bristles. Second: Length ⅔ mm., of about 6 segments, all longer than wide but longest no more than 3 times width, a few marginal bristles on each.
Mouthparts. Upper Lip: Quite deeply emarginate, lobes bristled. Lower Lip: Inner lobes small, distally setose; outer lobes with small inwardly turned acute

Text-fig. 1.—Vibilia stebbingi? Behn. & Wolt. Female. 1—Adult. 2—Antenna 2.3—Antenna 1. 4—Antenna 1, end segment. 5—Upper lip. 6—Lower lip. 7—Maxilla 1.8—Maxilla 2. 9—Mandible. 10—Mandibular palp. 11—Maxilliped, left side. 12—Gnathopod 1.13—Gnathopod 1, propod posterior margin. 14—Gnathopod 2. 15—Gnathopod 2, propod posterior margin and carpal process anterior margin. 16—Peraeopod 1. 17—Peraeopod 3.18—Peraeopod 4, carpus and propod. 19—Peraeopod 5. 20—Scale from peraeopod 5. 21—Epimeral plates. 22—Uropods and telson.

apex, median and distal margins bristled. First maxillae: Outer plate narrow, base less than ½ width of inner plate, margins and ends strongly bristled, reaches past base of inner plate teeth. Inner plate square-ended with 6 or so strong teeth, strongly setose. Second maxillae: Cleft in 2 pronounced lobes; outer subtriangular and setose with 1 or 2 end teeth; inner slightly longer, distally rounded, with similar teeth and setae. Mandibles: Cutting edge of 2 plates, lower the smaller, both with incised distal margins; spine row of 7 or 8 small, strong spines; molar process strongly produced inwardly, has a round terminal disc with rim of long fine teeth. Palp unfortunately detached during dissection; of 3 segments, 1st less than ½ length 2nd; 3rd longer than 1st and 2nd combined, tract of small setae medially along surface, terminally acute. Maxilliped: Basos and ischium with several strong setae on surface, inner median plate rounded, a few minute spines on surface; outer plate with irregular row of short, single spines on surface near inner margin, a few bristles, outer margin convex, with 3 or 4 small spines, distally rounded and margin finely toothed, inner margin straight and strongly toothed, with several fine setae.
Gnathopods. First: Sideplate small, angles rounded. Basos widest medially, greatest width nearly ½ length, 3 strong spines on posterodistal angle. Ischium ⅕ basos, 2 setose spines on posterodistal angle. Merus anterior margin short, posterior nearly ⅓ basos length, produced ½ along carpus, 4 setose spines posterodistally. Carpus barely more than ⅓ basos length, distal width ¾ length; 2 setose spines on anterodistal angle and 3 on posterodistal. Propod ovate, narrowing to dactylos, as long as carpus, greatest width more than ½ length; 3 or 4 short setose spines on distal ½ of anterior margin; posterior margin toothed. Second: Chelate. Basos length 4 times width. Ischium less than ¼ basos length, 2 setose spines on posterodistal angle. Merus produced along carpus almost to propod as scoop-like process with about 8 setose spines distally, 5 or so on posterior margin; anterior margin very short; total length ⅓ basos. Carpus has 2 small setose spines anterodistally, anterior margin is slightly shorter than merus, posterodistal angle produced along propod to dactylos in sharp knife-like process, inner margin toothed, surface minutely toothed at apex. Propod as long as merus, 2 single setose spines on convex anterior margin; posterior more or less straight and finely toothed. Dactylos as before.
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Peraeopods. First: Basos posterior margin greatly convex, width ⅖ length. Ischium subrectangular, ¼ basos. Merus anterior margin convex, distal width ½ length, length ½ basos. Carpus narrower, width ⅓ length, length ½ basos. Propod width ⅕ length, barely longer than merus. Dactylos stout, ½ propod length. Third: Sideplate small, subrectangular, angles rounded. Basos length slightly more than twice width, not widening greatly; anterior margin with about 5 short, strong single spines distally. Ischium subrectangular, ⅓ basos length, 2 minute spines anteriorly. Merus widening slightly distally, ¾ basos length, width ⅓ length, spine at posterodistal angle, a few small setae on anterior margin. Carpus slightly narrower, as long, margins parallel, spine on anterodistal angle, a few fine setae anteriorly. Propod slender, width 1/7 length, slightly longer than basos, a few fine setae on each margin, anterior margin very finely combed, with slender teeth. Dactylos ⅓ propod length, anterior margin minutely toothed. Fourth: Similar, but carpus has 6 spines on anterior margin; carpus, propod and dactylos anterior margins are all minutely toothed. Fifth: Reduced. Basos anterior margin straight, posterior convex with a few fine bristles; posterodistal angle

sharply rounded; acute anterodistal angle has single spine; width slightly more than ½ length. Ischium small, spine on anterodistal angle, less than ⅙ basos length. Merus ¼ basos, length nearly twice width; single spine on each distal angle. Carpus nearly ½ basos length, as wide as merus. Propod slightly narrower, slightly longer than carpus. Dactylos ½ carpus width, as long, distally rounded. Last 3 segments with very small scales on surface, mostly near margins; scales with strongly serrated margins, very hard to see. Peraeopod altogether as long as combined length of merus, carpus and propod of Pr. 3.
Pleopods: Biramous and normal, rami longer than peduncles.
Epimeral Plates: Roughly subrectangular, angles rounded, ventrodistal margins may be finely bristled.
Uropods: Tips of rami of 1st reaching as far as tips of 3rd; 2nd reaching ⅔ along rami of 3rd. First: Outer margin of peduncle with 10 strong serrations along distal ½. Outer ramus, outer margin finely toothed proximally, distal ¾ strongly toothed; inner margin distal ⅓ with about 3 strong teeth, remainder finely toothed. Inner ramus, inner margin with proximal ½ finely toothed, rest has about 9 strong teeth; outer margin has about 8 strong teeth distally, proximal ½ smooth. Rami subequal; peduncle-rami proportions 9:5. Second: Peduncle margins smooth, distal angles produced to strong teeth. Rami subequal, outer ramus with proximal ½ of outer margin smooth, distally about 3 strong spines, inner margin has 1 strong tooth distally, remainder is finely toothed; inner ramus outer margin finely spined proximally, distal ⅓ has about 3 strong spines; inner margin has 3 strong teeth distally. Peduncle-rami ratio 5:4. Third: Peduncle stout, width nearly ½ length; rami (in what appears to be normal condition—the rami of right and left uropods differ in my specimen) lanceolate, subequal, median margins finely toothed, inner margin of inner ramus finely toothed distally; outer margin of outer ramus smooth, with a few single bristles. Peduncle-rami ratio 9:13. Telson: Broadly subtriangular, slightly wider than long, reaching ½ along uropod 3 peduncle.
Hypotypes: Slides L.24.
Distribution: Mediterranean; Atlantic about 35° N.-30° S.; Eastern Pacific; New Zealand.
