TUBULIPORID.E : TUBULIPORA. 273 



and it is difficult to give a " not content " to his conclusion. The 

 polypidom is entirely adherent to the surface of the shell, and the 

 segments, parting from a narrow origin, expand into large rounded 

 lobes. In the form and arrangement of the tubular cells there is a 

 close resemblance to Tubulipora serpens, but their medial division is 

 either obscure or unobservable. I have since procured a specimen 

 in Berwick Bay which gives additional strength to Mr. Thompson's 

 view. 



6. T. PHALANGEA, circular^ ohsoletely lohed^ toith a mesial di- 

 vision domn the middle of each lobe ; tubes slender, suberect, 

 irregularly rowed. W. Thorapsou. 



Plate XLVI. Fig. 1, 2. 



Tubulipora phalangea ! Couch Com. Faun. iii. 1 06, pi. 1 9, fig. 7. — Tubulipora verru- 

 caria? Af, Edwards in Ann. des Sc. Nat. n. s. viii, 323, pi. 12, fig. 1. IIassaU{?) 

 in Ann. and Mag. N. Hist, vi, 171, pi. 6, fig. 3, 4 ; and (!) vii, 366. 



Hah. On rocks, shells and shell-fish, corallines and Laminarifc, 

 not rare. " It appears to luxuriate in the bulb of Laminaria bulb- 

 osa, where it is fine indeed," C. W.Peach. 



Polypidom spreading circularly, 4 lines in diameter, somewhat 

 lobed, and usually pentapetalous, of a very pale purple colour, the 

 base entirely adherent, thin, and without any visible margin : 

 Polype-tubes diverging from the centre, divided down the middle of 

 each lobe into two sets marked by their inclination outwards, irre- 

 gular, running into lines, and very decidedly so at the circumference, 

 where they are crowded and almost horizontal ; the tubes slender, 

 somewhat flexuous, thin and vitreous, with an even entire aperture. 



" The tubes are comparatively long, and are not in contact with 

 each other as viewed from above. They are numerous and arranged 

 in perpendicular rows ; each row is formed of a single series of 

 tubes, which are in contact with each other ; each being united to 

 the one above and below. This arrangement presents the appear- 

 ance of a number of Pan's pipes placed perpendicularly, the sets 

 being separated from each other." B. Q. Couch. 



When mature this fine Zoophyte resembles, as Mr. Ilassall has 

 aptly said, "in outline a pentapetalous flower, being slightly five- 

 lobed." Mr. Peach has seen it nearly an inch in diameter, and he 

 tells me that, in its beginning, it is fan-shaped, and generally parts 

 into two lobes dilating outwardly. I can scarcely doubt of the 

 identity of this lobed polypidom with the Tubulipora verrucaria of 

 Milne-Edwards, which is apparently not lobed, for I have seen small 



T 



