. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. LARVAE OF DECAPOD CRUSTACEA 325 Group II C Telson of C I type; leg 5 without exopod Callianassa? D. XIV (Fig. 25) Discovery St. 278. Rostrum 1-2 mm.; body 4-37 mm. Rostrum broad, not much longer than antennule, with narrow bare tip; dorsal ridge continuing on to carapace. Carapace closely serrated in front. Abdomen: somite 2 with very large dorsal spine reaching half way along somite 4; somites 3-5 with coarsely serrated dorsal ridge. Pleura all rounded. Telson less than twice as long as wide, w
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. LARVAE OF DECAPOD CRUSTACEA 325 Group II C Telson of C I type; leg 5 without exopod Callianassa? D. XIV (Fig. 25) Discovery St. 278. Rostrum 1-2 mm.; body 4-37 mm. Rostrum broad, not much longer than antennule, with narrow bare tip; dorsal ridge continuing on to carapace. Carapace closely serrated in front. Abdomen: somite 2 with very large dorsal spine reaching half way along somite 4; somites 3-5 with coarsely serrated dorsal ridge. Pleura all rounded. Telson less than twice as long as wide, widening to end; spines i and 2 very small and near outer angle; posterior margin straight; spine formula 8, 1,8. Eye nearly round. Antenna with small outer setae at base of exopod: basis with small inner spine. Palp of maxillule and maxilla of three segments. Maxillipede i with outer seta on segment i. Legs without epipods. Leg 5 without exopod. Three pairs of Fig. 25. Thalassinid D. XIV. a. Telson. h. Telson stage II. c. Antenna, stage II. Callianassa? D. XV (Fig. 26) Discovery St. 708. Rostrum 1-24 mm.; body 3-90 mm. Rostrum very broad, scarcely longer than antennule. Carapace with close-set marginal spines in front. Abdomen: somite 2 with dorsal spine reaching end of somite 4; somites 3-5 with coarsely serrated dorsal ridge. Telson less than twice as long as wide; lateral spines 1-4 close together at angle; posterior margin concave, with minute median spine and four spines on either side; spine formula 8, 1,8. Eye oval, rather pointed, pale. Antenna: basis without inner spine; scale with outer basal seta. Palp of maxillule and maxilla of three segments. Chelae of legs i and 2 not fully formed, fairly large. Leg 5 without exopod. Epipods absent. Three pairs of pleopods. Callianassa? D. XVI Discovery St. 1375. Rostrum 1-65 mm.; body 6-86 mm. Rostrum broad, parallel-sided, considerably longer than antennule. Carapace with seven marginal spines. Abdomen: somite 2 with
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