54 Coelenterata. 



Alcyonium 1, Anthomastus 1, Eunephthya (= Duvea) rosea, Gymnosarca 1, 

 Corallium 1, Ceratoisis 1, Acanella 1, Chelidonisis 1, Caligorgia 1, Stachy- 

 odes 1 n., Clematissa 1, Acanthogorgia 1, Paramuricea 1, Callistephanus 1, 

 Pennatula 2, Virgularia 1, Protoptilum 1, Funiculina 1, Benthoptilum 1 (which 

 is viviparous), Kophobelemnon 1, Umbellula 1, Flabellum 1, Stephanotrochiis 1, 

 Caryophyllia 1, Desmophyllum 1, Lophohelia 1, Amphihelia 1. 



Thomson & Simpson record and describe, from the Indian Ocean, 187 species 

 of littoral Alcyonarians (108 new); of these 61 (53 n.) belong to Dendro- 

 nephthya (Spongodes). Studeriotes (n. nom. pro Studeria, see Bericht f. 19T)8 

 Coel. p 6 Thomson ( 3 )) consists of a densely spiculose cup with numerous finger- 

 like polyp-bearing lobes or branches arising from a strong, muscular, central 

 thalarnus and from the inner walls of the cup ; each lobe is covered with polyps 

 and ends in one larger than the rest. This genus is related, but not very 

 closely, to Paralcyonium. Cactogorgia [see Bericht f. 1907 Coel. p 5 Simpson) 

 differs from the Siphonogorgia-typQ in being even more densely spiculose and 

 rigid, in showing a marked division into trunk and polyp-bearing portion and 

 in the absence of definite branching, the polyps being borne mainly on the 

 margin of flattened lobes. Dactylonephthya is intermediate between Spongodinse, 

 Siphonogorgiuse and Alcyonidse. Parabelemnon is a Veretillid allied to Stylo- 

 belemnon and Stylobelemnoides. The authors record Tubipora 1, Alcyonium 1 n., 

 Sarcophytum 2, Lobophytum 1, Sclerophytum 5 (1 n.), (in two of these there are 

 no siphonozooids), Nephthya 2 n., Dendronephthya 61 (53 n.) ; Siphonogorgia (with 

 which Chironephthya is merged) 10 (5 n.), Scleronephthya 1 n., Stereacanthia 2 

 (1 n.), Solenocaulon 4, Suberogorgia 3 (1 n.), Keroeides 1, Melitodes 4 (2 n.), 

 Parisis 1, Caligorgia 1, Isis 1, Acanthogorgia 1, Anthogorgia 2 n., Calico- 

 gorgia 2 (1 n.), Echinomuricea 6 n., Echinogorgia 7 (2 n.), Menacella 1 n., 

 Bebryce 2 (1 n.), Acamptogorgia 4 (1 n.), Ads 5 (2 n.), Elasmogorgia 2, Muri- 

 cella (diagnosis emended) 5 (2 n. sp. and 1 n. var.), Eumuricea 2 n., Plexaura 1, 

 Plexauroides 1, Psammogorgia 1 n., Lophogorgia 1, Nicella 2 n., Juncella 1, 

 Verrucella 1 (with numerous Cirripede galls), Gorgonella 2, Telesto 3, Kopho- 

 belemnon (with which Sclerobelemnon is merged) 1 n., Virgularia 5 (2 n.), $c?y- 

 taliiim 1 (1 n. var.), Pennatula 1, Pteroeides 16 (6 n. sp., 1 n. var.), Cavernu- 

 laria 5 (2 n.), Lituaria (diagnosis emended) 2 (1 n.), Policella 1. Compared 

 with the deep-sea collection from the Indian Ocean [see Bericht f. 1906 Coel. 

 p 34 Thomson & Henderson] there is a large representation of Dendronephthya, 

 Sclerophytum, Siphonogorgia^ Melitodes, Pteroeides, Cavernularia, etc., but an 

 absence of Sympodium, Chrysogorgia, Umbellula, etc. 



BalSS records from Japan Cavernularia 1, Lituaria 1 n., Kophobelemnon 2, 

 Sclerobelemnon 1, Funiculina 1, Pavonaria 1, Echinoptilum 1, Prochunella n. 2, 

 Halisceptrum 1, Stachyptilum 1 n., Scytalium 1, Pennatula 4 (in one of the large 

 siphonozooids of P. Murrayi an ovum was found, probably these siphonozooids 

 serve as exits for the genital products), Pteroides 3 (1 n.), and also gives a list 

 of Kolliker's specimens in the Miinchener Museum. 



Bohn( 1 ) finds that, in contracted examples of Veretillum cynomorium turgescence 

 begins at the tip of the peduncle, which becomes excessively sensitive to touch 

 and weight and consequently curves vertically downwards. Sensitiveness ac- 

 companies turgescence as it extends along the peduncle, which accordingly 

 straightens; finally the body becomes swollen. Any part of the peduncle 

 or body, just after extension, acquires great sensitiveness to mechanical stimuli 

 and thus a pronounced geotropic sensitiveness. When the peduncle dilates it 

 turns vertically downwards even if not in contact with the sand. When the 

 body has dilated to its tip it is sensitive along its whole length but soon be- 



