CORRECTIONS AND ADDITIONS. 451 



reddish-brown band especially in the anterior segments. Cirri, both ventral and 

 dorsal, tapering away to a slender filament. Specimen, a fragment 3*5 millims. long, 

 I millim. broad over setae, consisted of the anterior 17 pairs of parapodia only. 



(2) Ascidicolous Nereid from Galle. This worm, the identity of which has not yet 

 been satisfactorily determined (though apparently allied to Nereis vexillosa, GRUBE), 

 was found in the crevices of an Ascidian. The specimen is 22*5 millims. long, 

 3*5 millims. broad over the setae, and consists of the head and anterior 64 segments 

 only, the hinder part of the body being in course of regeneration. The head differs 

 greatly from that of N. vexillosa and is very remarkable, being rather longer than 

 broad and almost rectangular in form. It is dark brown and iridescent, as are also 

 the succeeding 12 segments. Eyes large and black, the anterior pair before and the 

 posterior pair just behind the bases of the longest cirri. Tentacles widely separated 

 and half length of the head. Longest tentacular cirrus about twice as long as head, 

 others much shorter. Palps large brown bases with pale tips. First four body 

 segments twice as long as the succeeding ones. The proboscis being retracted, the 

 paragnaths have not yet been examined. The setae are somewhat similar to those of 

 Nereis melanocephala, their general distribution being two slender spinigers in each 

 dorsal lobe, and two or three spinigers, accompanied by five to seven stout setae with 

 pectinate falces, in each ventral lobe. The outline of the enlarged dorsal ligules of 

 the posterior parapodia differs greatly from the figures of N. vexillosa given by 

 GRUBE and EHLERS ; the cirrus, moreover, is long and blade-like instead of filiform. 

 This is probably a new species. 



(3) Brown, Parchment-like Branched Tube of one of the Eunicidce. The main 

 trunk 11 millims. calibre, 70 millims. long, with two short branches from one side. 

 The terminal half of trunk sinuous, much like the tube of Eunice tibiana, EHLERS, 

 with numerous openings in corresponding positions. The lower half of tube is partially 

 enveloped by a compound Ascidian, Leptoclinum sp., the colony being perforated at 

 intervals for openings into the tube. No worm accompanied the specimen. 



PART V. Add the following list of ACTINIARIA identified by Mr. T. SOUTHWELL : 



Cerianthus sp. Tampalakam, Trincomalee. 



Zoanthus shackletoni, HADD. and DUER. Reef Galle and Gulf of Manaar. 

 Zoanthus (? n. sp.). Reef Galle. 



Isaurus duchassdigni (ANDRES). Coral reef, Gulf of Mauaar. 

 Gemmaria variabilis, DUERDEN. Reef Galle. 

 Palythoa tuberculosa, KLUNZ. Reef Galle. 



Sphenopus marsupialis, STEENSTR. Station LVIIL, 9 to 26 fathoms, and elsewhere 

 in Gulf of Manaar. 



Halcampa sp. Tampalakam, Trincomalee. 



Sagartia sp. Reef Galle. 



Phellia sp. Cheval Paar, Gulf of Manaar. 



