698 SUMMARY OF CURRENT RESEARCHES RELATING TO 



East African Decapods and Stomatopods.* — H. Lenz reports on 

 a collection made by A. Voeltzkow including 129 species, among which 

 are new species of Leptodius, Gonodactylus, Protosquilla, Harpilius, and 

 Neptunus ; a new genus Voeltzkowia, one of the Hexapodinse ; and 

 another new (unnamed) genus belonging to the Grapsidae. 



New Species of River-Crab from Yunnan.} — W. T. Caiman de- 

 scribes Parathelphusa spinescens sp. n. from the lake at Yunnan. It 

 differs remarkably from any species hitherto described from Asia, and in 

 some characters — e. g. the possession of more than four antero-lateral 

 teeth on the carapace, resembles the African group of species forming 

 the sub-genus Acatithocephalusa of Ortmann. It is, however, not 

 necessary to assume any special relationship with the African species. 



Abyssal Crabs.J — H. Coutiere discusses young forms of the genus 

 Caricyphus, as represented in the Prince of Monaco's collections. It is 

 one of the most remarkable of the Eucyphota, and helps to link the 

 Decapods to the Schizopods and even to the Phyllopods. The affilia- 

 tion of young forms of Caricyphus to adult genera like Toxeuma is 

 certain. Many similar young forms have been made into separate 

 genera, in ignorance of the extraordinary metamorphoses. It is probable 

 that Bentheocaris and Procletes are larvae of Hoplophoridas, and that 

 Kyptocaris, Anebocaris, Rhomaleocaris, Icotopus, Hectarthropus are larvae 

 of Eucyphota. The abyssal Eucyphota have an unsuspected complexity 

 in their life-history ; the contrast between larva and adult is comparable 

 to that between insect-larva and imago. 



Epipodites of Eucyphota.§ — H. Coutiere gives an account of the 

 epipodites of the thoracic limbs, and maintains that they represent a 

 vestigial branchial organ. 



Ceylonese Cumacea.|| — W. T. Caiman describes nine new species 

 collected off Ceylon by W. A. Herdman and Hornell. No Cumacea 

 have hitherto been recorded from the Indian Ocean. There are two new 

 species of Eocuma and four of Gyclaspis ; the others are Iphinoe macro- 

 brachius, Paradiastylis brachyura, and Nanaastacus stebbingi. 



Ceylonese Caprellidse.H — Paul Mayer reports on Monoliropus 

 falcimanus sp. n. and a number of other species (previously recorded). 



Ceylonese Amphipods.** — A. 0. Walker reports on the rich collec- 

 tion of Amphipods made by W. A. Herdman and Hornell on the coasts 

 of Ceylon. " It is undoubtedly the most important that has ever been 

 brought from a tropical sea." It includes SO species, of which 36 are 

 new to science. Six new genera are established. 



Artemia salina.ft — Cesare Artom has made some interesting obser- 

 vations on Artemia salina from the brine-pools of Cagliari. It is not a 



* Abh. Senekenberg. Nat. Ges., xxvii. (1905) pp. H39-92 (2 pis.). 

 t Ann. and Mag. Nat. Hist., No. 92 (1905) pp. 155-S. 

 X Comptes Rendus, cxli. (1905) pp. 267-9. § Tom. cit., pp. 64-6. 



|| Ceylon Pearl Oyster Report, Royal Society, Part ii. (1904) pp. 159-80 (5 pis.). 

 \ Tom. cit, pp. 223-8 (9 figs.). ** Tom. cit.. pp. 229-300 (8 pis.), 



tt Zool. Anzeig., xxix. (1905) pp. 2S4-91 (1 fig.). 



