
Description Of Ovigerous Female
Length 6 mm. Reddish tinge to body segments; eyes reddish-brown (in formalin). Eyelobes more or less rounded. Pleon segments 1 and 2 with small tooth dorsally, 2nd with very small secondary tooth either side; 1st and 2nd urosome segments with stronger tooth each. Rostrum reaching as far forward as eyelobes, slender and conical.
Like L. aequabilis except for following details.
Antennae. First: Almost reaching end of antenna 2 peduncle. Accessory flagellum of 8 segments, primary of 14; flagellum superodistal angles have setae, and flaccid sensory seta. Second: Peduncle 3rd segment a little wider than long, inferodistal angle produced in short sharp tooth; about ⅓ length 4th; 4th has 4 sets or 2 or 3 spines and 1 or 2 setae superiorly, 2 pairs of spines on inferior

Text-Fig. 10.—Liljeborgia hansoni n. sp. Female 130—Rostrum. 140—Antenna 2. 141— Antenna 1, superodistal angles of some flagellar segments. 142—Maxilla 1. 143—Mandible palp. 144—Maxilliped, right half. 145—Maxilliped dactylos. 146—Gnathopod 2. 147–Peraeopod 1. 148—Peraeopod 1, propod posterio. margin. 140 Peraeopod 2 sideplate. 150. Pleon and urosome segments. 151—Uropod 3. 152—Telson.

Text-Fig. 11.—Liljeborgia hansoni n. sp. Female. 153—Peraeopod 3 sideplate and basos. 154—Peraeopod 4 sideplate and basos. 155—Peraeopod 5. 156—Peraeopod 5 basos posterior margin serrations. 157—Epimeral plates. 158—Uropod 1. 159—Uropod 2. Liljeborgia akaroica var. akaroica n. sp. n. var Female. 160—Gnathopod 1. 161—Gnathopod 1 dactylos. 162—Gnathopod 2 dactylos 163—Peraeopod 1. 164—Peraeopod 1. propod posterior margin. 165—Telson.

margin, row of small spines on inferodistal angle; 5th segment as long, slightly narrower, 7 groups of setae or spine plus setae superiorly; 3 sets of setae inferiorly. Flagellum as long as 5th segment, of 11 segments, not noticeably lanceolate.
Mouthparts. First Maxillae: Inner plate has simple plumose terminal seta, palp has about 7 short stout spines on end and inner distal margin, about 4 setae. Mandible: Palp 1st segment about ⅘ length 2nd; 3rd about ⅔ length 2nd; 2 setae on end of 2nd, 4 on end of 3rd and 1 half along inner margin. Maxilliped; Inner plate reaches ½ along merus, has 3 spines and several setae distally. Outer reaches ½ along carpus, has 6 short spines and about 6 setae on inner margin. Fewer setae down carpus surface, 1 on carpus outer margin at ⅔, 7 or 8 short setae near propod outer margin; dactylos finely combed on inner margin; setation otherwise as in L. aequabilis; carpus inner margin twice length merus outer, carpus width ½ length; propod almost as long as merus, width ⅓ length, dactylos about ⅔ propod length, small terminal nail.
Gnathopods. First: Small but hardly significant differences from L. aequabilis in proportion; longer setae distally on basos posterior margin, no setae on propod anterior surface but number across posterior surface in palmar spine region; 2 palmar spines, 3 across inner knob; 4 teeth on dactylos inner margin; propod anterior margin is proximally trenched with double margin where it bends back on basos. This is also present in Gn. 2, absent in Gn. 1 in L. aequabilis and barely indicated in Gn. 2 in L. aequabilis. Sideplate has seta and more pronounced posterodistal notch than in L. aequabilis. Second: Sideplate posterodistally notched, the slight proportional differences from L. aequabilis of no great significance. Palm evenly convex throughout, palmar spines as in Gn. 1; anteroproximal trench in propod as in Gn. 1; 6 small setae on dactylos surface above the 7 teeth of inner margin. Gills simple, single, as long as basos.
Peraeopods. First: Sideplate ovate, convexly rounded ventrally and not narrowed much. Basos margins quite strongly setose, width ⅙ length, ischium ⅙ basos length, merus ½ basos, a few fine setae on margins; carpus ⅓ basos length, a few fine setae posteriorly; propod slightly more than ½ basos length, about 6 sets of 1 long and 1 short fine seta posteriorly; dactylos about ⅗ propod length. Second: Sideplate subrectangular, distal width about ¾ length, 5 or so fine serrations and setae on posterior margin. Third: Small ovate sideplate has a small posterodistal notch and seta. Basos ovate, margins both convex, distinctly narrowing proximally, 8 spines along anterior margin, 2 or 3 on angle; posterior margin has about 11 serrations each with small seta; merus has groups of 2 or 3 spines on anterior margin; other slighter differences from L. aequabilis Fourth: Sideplate subrectangular, small posterodistal notch and seta. Basos proximally narrowing, margins convex; anterior has 7 spines on distal portion, 2 or 3 on angle; posterior has about 21 serrations with seta each, most of serrations quite pronounced and as in Pr. 5; other segments much as in Pr. 5. Fifth: Sideplate subrectangular, notch and seta posteroproximally; depth about ⅓. basos length Basos ovate, not greatly narrowing proximally and with flange posterodistally, width about ⅔ length; otherwise as in Pr. 4 but serrations much stronger, as shown in Fig. 156. Merus about ⅘ basos length, width not [ unclear: ] length, margins almost parallel, distal angles strongly spined; 4 sets of 3 or 4 spines along anterior, 5 sets of 1 to 3 along posterior. Carpus as long, narrower, 3 sets of

2 to 4 spines on each margin, distal angles spined. Propod linear, about ⅙ longer than basos, 7 sets of spine and 1 or 2 fine long setae on one margin; 7 sets of single or paired spines on other, spine or 2 and long setae distally; short spike dactylos about ¼ propod length.
Plepods. Normal.
Epimeral Plates. First: Subsquare, anterodistal angle rounded, posterodistal a little produced, posterior margin convex, anterior and ventral margin finely setose. Second: Basically similar, anterodistally a little more angular, without setae. Third: Subrectangular, much wider than deep, slightly convex ventrally, anterodistal angle rounded, posterodistal produced to distinct tooth, strong concavity between it and secondary tooth immediately above, seta in concavity, posterior margin otherwise straight, oblique, narrowing proximally.
Uropods. First: Rami and peduncle subequal, peduncle dorsal margins with 5 spins each, last on inner side very strong, an almost equally long and narrow prolongation of angle beside it. Rami sublanceolate, with narrow tips, integral end spines; 5 spines along each dorsal margin of outer ramus, 6 or 7 on margins of inner. Second: Similar, shorter, fewer spines; peduncle outer dorsal margin has 4, inner has 2;5 on outer ramus outer margin, 3 on inner; 2 on inner ramus outer margin, 4 on inner. Rami canoe-shaped. Third: Rami lanceolate, inner the wider, subequal and nearly twice length of peduncle which has 2 spines near inferior acutely produced inner angle, 1 or 2 on superior, 1 on outer. Inner ramus has 4 and 5 spines on margins; outer has 2 pairs of spines on outer margin. Telson: Lobes long and narrow, cleft about ¾, single very strong spine set in deep notch in each apex, the angles of the notch acutely produced, outer nearly twice length of inner.
Localities. About 7 miles north of Otago Heads, 18–20 fathoms, trawled “Grace,” coll. Hanson Bros., 23/11/1953.
Type. Slides P.100 ♀.
