370 



Proceedings of the Royal Irish Academy. 



Xialla monUiformc is recorded from one hiuidred fathoms, and the only 

 other records from over fifty fathoms are Scirpcaria thomsoni and Scu^jcaria. 

 alba, both from 88 fathoms. The following table will give at a glance the 

 chief records for each of the species in this report : — 



SPECIES. 



JunctUa juncca, 

 Jv.ncdla gcmmacm, 

 Juncilla raccmosa, 

 JunceUa trtliiuata, 

 Scirpcaria profunda, 

 Scirpcaria hicksoni, 

 licirpearia verrucosa, 

 Scirpenria niutmaln, 

 Scirpcaria pccliiutta, 

 Scirpcaria elonijata, 

 Scirparia Jlaijdlum, 

 Scirpcaria thomsoni, 

 Scirpcaria alba, 

 Scirjxaria anrantiaca, 

 Scirpca rUi fu rcata , 

 Scirpcatia andamancnsis, 

 Scirpcaria ramosa, 

 Scirpcaria ceyloncnsis, 

 Sciipcaria mactUata, 

 Scirpcaria qxtadrilincata 

 NiccUa dichotonia, 

 NiccUa jialclUUa, 

 A'icdla rcticidata, 

 KiecUa moniiiformc. 



DEPTHS I>" FATHOMS FROM WHICH 

 RECORDED. 



. 010; 4; 7-11; 15-35; 25-30; 45; 50. 



. 0-8; 4; 8; 11; 19; 12-20; 32. 



. 120; 345. 



. 34. 



. 130 ; 345. 



. 36. 



. 50. 

 ■> 



. 3-4; 12; .30. 



. 90; 150; 200; 60-120. 



. 88. 



. 88. 



. 30-50; 60-130; 120; 150; 1.30. 



. 15. 20 30-40 ; 50-78. 



. ? 



. 20. 



. ? 



. ? 



. 30-50. 



. ? 60-120. 



. 45. 



. 30-50 ; 48-49. 



. 100. 



It is quite probable, however, that when more inshore-work is carried 

 on ill tropical seas records will be abundant from water of much less 

 depth than that at present given. Ridley in referring to the depths at 

 which JunoMa r/cmmacca occurs gives " Ijctween tide-marks," and, as has 

 Ijeen alreaily pointed out in the " Biological Note," it is no uncommon 

 occurrence on the scattered coral reefs of the Mergui Archipelago to see at 

 low spring tide huge colonies of J. (ji:mmacca and J. juncca as well as 

 Mditodis and other Alcyonaria swaying to and fro in the aii'. 



