Corals from the China Sea. 445 



upright, at their summits with open, divergent, finger-like 

 processes. The branches thin, with strongly incurved mar- 

 gins, so that the outer or under surfaces are strongly convex, 

 whilst their upper surfaces are deeply channelled, the mar- 

 gins spinous ; the outer surfaces with well-marked costal 

 stri«, which are crested with very minute spines. Calices in 

 single series at the bottom of the channelled upper surface of the 

 branches, from 3 to 10 millira. apart. Calices depressed, less 

 than 1 millim. wide; from 8 to 12 septa. Columella incon- 

 spicuous, septa strongly and minutely spined laterally. The 

 branches from 2*5 to 4 millim. in width. 



This species differs from the preceding in the narrower, 

 more incurved branches, the smaller calices with fewer septa, 

 and the more strongly marked costas of the under surface. 



Macclesfield Bank, depth 26 fath. 



Pavonia clivosa, Verrill. 



1869. Pavonia clivosa, Verrill, Proc. Boston Soc. Nat. Hist. xii. p. 394; 

 Trans. Connect. Acad. vol. i. (1866-71), p. 644, pi. ix. tig. 8. 



Incrusting, forming large masses with an uneven lobate and 

 ridged surface, consisting of successive crusts about 4 millim. 

 thick. The upper surface crowded with calices about 75 

 millim. wide and 2 millim. from centre to centre. The calices 

 with from 10 to 22 septa, large and small, the septa finely 

 spined laterally, confluent as usually in this genus. The 

 columella a blunted tubercle, sometimes compressed. 



This specimen, about 200 millim. in length, agrees in so 

 many respects with Verrill's description that it may fairly 

 be referred to it. I do not, however, distinguish any of the 

 dissepiments or " transverse septa " referred to by Verrill. 



Tizard Bank, depth 8 to 10 fath. 



Pavom'aj sp. 



A fragment of a frond, thin, finely striate on the under 

 surface, the upper surface alone with calices, irregularly 

 situated between raised ridges running towards edge of frond. 

 Same mode of growth as P. divaricata, but the calices 

 restricted to one surface. 



Macclesfield Bank, 'IQ^ fath. 



Pavonia^ sp. n. 



Growing as small hollow stems partially incrusting round 

 Annelid tubes, the under surface finely striate ; outer surface 

 nodose and uneven, with numerous calices very irregular in 



