Discovery reports (1941) Discovery reports discoveryreports20inst Year: 1941 LARVAE OF SERGESTES 37 Description. Elaphocaris i (Fig. 28 a). Length 0-64 mm. Anterior process quadrifid at end. Lateral process curving backwards, with seven spines. Posterior process with two pairs of spines. Dorsal organ present, small. Telson arms divergent, slender, spine 5 of same length as 4. Elaphocaris 2 (Fig. 28 b-d). Length about i mm. Rostrum 0-64 mm. Rostrum as long as carapace, swollen at base, where it bears four spines dorsally on either side. Lateral process long, hispid, directed backwards. The hi
Discovery reports (1941) Discovery reports discoveryreports20inst Year: 1941 LARVAE OF SERGESTES 37 Description. Elaphocaris i (Fig. 28 a). Length 0-64 mm. Anterior process quadrifid at end. Lateral process curving backwards, with seven spines. Posterior process with two pairs of spines. Dorsal organ present, small. Telson arms divergent, slender, spine 5 of same length as 4. Elaphocaris 2 (Fig. 28 b-d). Length about i mm. Rostrum 0-64 mm. Rostrum as long as carapace, swollen at base, where it bears four spines dorsally on either side. Lateral process long, hispid, directed backwards. The hispid margin is continued forwards into a rounded prominence, or ' epaulette '. Posterior process long, rather swollen at base, and hispid. Eye rather short, pear-shaped, the eyeball not distinct from the stalk, which bears a small anterior papilla. The only specimen seen is one moulted from stage i, and the abdomen and telson are not fully formed. Elaphocaris 3 (Fig. 28 e,f). Length 2-3 mm. Rostrum i-i2 mm. Rostrum shorter than carapace and without the basal sweUing of stage 2. Supra- orbital spines about as long as eyes, with long slender spinules. Lateral and posterior processes as in stage 2. Abdominal somites with small sharp pleural points. Telson arms divergent, slender, about twice as long as wide, the spines rather short. Eye slender, pear- shaped, as in stage 2, and with papilla. Colour. In stages i and 2 there are patches of red in a ground of brownish orange at base of the lateral and posterior processes. In stage 3 the red colour is more pronounced and there is red in the eyestalk. The distribution of colour in the thorax is not quite the same, and there is no colour in the abdomen in the specimen described. Acanthosoma 2 (Fig. 29). Length 5-3 mm. Rostrum 1-4 mm. Carapace a little longer than wide, with two lateral spines of which the posterior pair is minute. Supra- orbital spine shorter than eye. Posterior dorsal and hepatic spines present. Dorsal organ very small
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