The Tanganyika problem; an account of the researches undertaken concerning the existence of marine animals in Central Africa . iefly described by Milne Edwards, Annales desSciences Naturelles Zoologie, Tome III., p. 147, but ashe had no example of the male, and at the time was notaware of the peculiar interest attaching to the Tanganyikafauna in general, it is to be hoped that the animal will bemore studied in the near future, more especially so since thepeculiarly marine aspect of the crab at once struck MilneEdwards himself. Thus he says : This fresh-water crabpresents such a great resemblan
The Tanganyika problem; an account of the researches undertaken concerning the existence of marine animals in Central Africa . iefly described by Milne Edwards, Annales desSciences Naturelles Zoologie, Tome III., p. 147, but ashe had no example of the male, and at the time was notaware of the peculiar interest attaching to the Tanganyikafauna in general, it is to be hoped that the animal will bemore studied in the near future, more especially so since thepeculiarly marine aspect of the crab at once struck MilneEdwards himself. Thus he says : This fresh-water crabpresents such a great resemblance to certain marine orbrackish species belonging to the Grapsides . . thatwe might be tempted to relate it to them but for the de-velopment of the abdomen and the absence of meta-morphosis. It is, however, obviously open to questionhow far such marks of distinction should be allowed weight. LlMNOCARIDINA TANGANYIKA * (Fig. III). Description.—The rostrum (Figs- 1-2) is very long and slender, gently recurved,varying from about I3 to twice the length of the carapace, and extending beyond * Caiman, Proc. Zoo. Soc, Fig. III.—Limnocaridina tanganyikice. i, Adult from the right X 3. 2, Cara-pace and rostrum. 3, Caradina wyckii (Hickman) anterior part of , Peduncle of antennule. 5, Mandibles. 6, First maxilla. 7, Second , First maxilliped. 9, Third maxilliped. ga, Terminal joint of third maxilli-ped. (After Caiman.) 8 THE TANGANYIKA PROBLEM. the antennal scale by £ to nearly i its length. There are from 12-15 teeth on itsupper edge, three (rarely two) of which are behind the orbit. The teeth becomemore widely spaced distally, and the last one is generally separated by rather lessthan half the length of the rostium from the simple, sharply pointed tip. Thelower margin of the rostrum bears from 10-20 teeth, which extend quite to the the orbit the anterior margin of the carapace is produced into a triangulartooth, but there is no antennal1 spine s
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