54 Proceedings of the Royal Irish Academy, 



Distributio7i of J. [lemmacea. 



Eed Sea. 



Providence Island. 



Mascarene Island, 19 fms. 



Mermaid Straits. 



Queensland, X.-E. Australia : . Percy Island, 0-5 fms. ; Port Molle, 

 12-20 fms. and between tide-marks; Port Denison, 4 fms.; Fitzroy 

 Island, 11 fms. 



Amirante Island, 32 fms. 



Malacca. 



Singapore. 



King Island Bay, and elsewhere in the ^lergui Archipelago, between tide- 

 marks and up to 30 fms. 



Torres Straits, 8 fms. 



Gulf of Manaar. 



Torres Straits (as EUisclla maculata pars.'). 



XII. — Juneella racemosa. Figs. 20-23. 



J. racemosa Wright and Studer, 1, p. 159, PL XXXIV, fig. 11. 



J. miniacea Thomson and Henderson, xl, p. 81, PI. v, figs. 7 and 12. 



J. racemosa Thomson and Simpson, xli, p. 268. 



This species was established by AYright and Studer for several small, 

 delicate, branched specimens in the "Challenger" Collection, with the following 

 features :— The branches arise all in one plane ; in one specimen all the 

 branches, to the very summit, are given off from the right side of the main 

 stem, which is curved. Several of these are short and simple, while others 

 are again branched. All the branchlets are given off from one side of the 

 branch, and, when branched to a third degree, the same fact holds true. The 

 polyps are numerous ; and on the stem and branches they show an eight- 

 rayed star ; on further contraction, they appear as small papillae ; when fully 

 contracted, they are 1 mm. in height and O'o mm. in diameter. On one 

 surface of the stem and branches polyps are absent; and on this naked 

 portion a feebly marked groove winds up the stem. The polyps are much 

 more numerous and crowded on the smaller branches, where they are placed 

 in three or four I'ows. The colour of the coeneuchyma and polyps varies 

 from reddish yellow to dark red. The bases of the polyps and tentacles are 

 of a much lighter hue. The coeuenchyma is thin, and has the characteristic 

 spicules of Juneella. 



The figure of the spicules given in the " Challenge)' " Report (PL xxxiv., 

 fig. 11) does not, however, give a good appreciation of their form ; and this led 



I 



i 



