. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. 132 DISCOVERY REPORTS indication of a median reversed claw between these two auxiliaries. The outer, or dorsal, is probably the original auxiliary, since it is on a level with and subequal to the auxiliary on the posterior side. The inner, additional auxiliary is very small. 6. The female of Nymphoii temdpes, Bouvier (p. 38), is interesting in that the two anterior pairs of walking legs are shorter and much more slender than the two posterior pairs and do not contain developing ova. It is possib
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. 132 DISCOVERY REPORTS indication of a median reversed claw between these two auxiliaries. The outer, or dorsal, is probably the original auxiliary, since it is on a level with and subequal to the auxiliary on the posterior side. The inner, additional auxiliary is very small. 6. The female of Nymphoii temdpes, Bouvier (p. 38), is interesting in that the two anterior pairs of walking legs are shorter and much more slender than the two posterior pairs and do not contain developing ova. It is possible that all four anterior legs were lost and subsequently regenerated, although the loss of so many legs at one and the same time would be a rare occurrence. It is just possible, of course, that the original specimen was cut in two halves and that the whole anterior por- tion of the body was regenerated. This is highly improbable, however, for Loeb (1895, p. 251), experimenting with Phoxichilidiiim maxillara, found that "Bei den aboralen Halften konnte ich dagegen nur eine Anschwellung am vor- deren Endewahrnehmen". The trunk, chelo- phores, palps and ovigers are all apparently quite normal and show the normal relative proportions; if the whole anterior half of the body had been regenerated it would very likely have been small in proportion to the posterior half. Another possible explanation may be advanced tentatively, namely, that in this species the female has normally only two pairs of genital openings as in the male; but until more females are available the specimen may be regarded as somewhat Fig. 75. Nymphonprocerot'des, BouYier. Co-type. Ventral view of left palp. ENCRUSTING ORGANISMS Encrusting organisms are found on Pycnogonida with far greater frequency than on Crustacea, for example. These are chiefly encrusting Polyzoa, adherent Foraminifera and Hydroids; but, in addition, an occasional Brachiopod, Sponge, Tunicate, Serpulid and Cirripede {Scal
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