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The remaining Japanese specimen (Prof. Mitsukuri) has the openings of its cancelli 

 greatly reduced by cryptocyst. 



Several of the specimens from Dr Willey's Lifu Collection seem to be referable to 

 the present species. The colony determined by Miss Philipps as L. ciliata has some of its 

 zooecia arranged in well marked uniserial rays, although the more peripheral zooecia are, as 

 usual, quincuncial. Many of these are fringed out into spines at their free ends; and an ovicell, 

 with an ooeciostome, both of the type found in the Japanese specimens, are present. 



A colony, from the same Collection, referred by Miss Philipps to L. hispida, and two 

 colonies referred by her to L. verrucaria seem to belong to the same species. 



M e a s u r e m e n t s , in \j.\ 



Greatest diameter of colony, fig. 5, 3,900; 

 Greatest diameter of colony, fig. 4, 3,500; 

 Diameter of peristomes, fig. 5, 100; 

 Diameter of openings of cancelli, fig. 4, 50 — 60. 



The species here considered appears to be identical with Discoporella ciliata Busk, 1875, 

 (Cape of Good Hope, New Zealand) ; and with the form described under the same specific 

 name by other authors. It does not seem to have been noticed, even by Busk himself, that 

 the specific name is pre-occupied by Discopora ciliata Busk, 1855 (see synonymy), a Northerrt 

 form clearly referable to Lichenopora and perhaps a form of L. verrucaria. It seems necessary, 

 therefore, to introducé a new designation, and I have accordingly named it in honour of Busk; 

 the type-specimen being the slide from the Cape of Good Hope preserved in the British Museum 

 under the Register-number 99. 7. 1. 519. Mr Waters (1887) has indeed suggested that L. ciliata 

 Busk, (1875) may be identical with L. verrucaria; but the account which he gives of its ovicell 

 shows clearly, I think, that this view cannot be maintained; and in any case the ovicell of the 

 specimens described in the present Report is widely different from that of L. verrucaria. 



3. Liclienopora ? mediterranea Mich. (PI. XII, figs 2, 3). 



Lichenopora mediterranea Michelin, 1840—1847, "Iconogr. Zoophytol.", p. 68, PI. XIV, figs $a, $è. 

 Discoporella mediterranea Busk, 1875, "Cat. Mar. Pol. Brit. Mus.", III, p. 33, PI. XXXIV, fig. 4. 

 (nee Liclienopora mediterranea (nomen nudum), Blainville, 1834, "Man. d'Actinol." p. 407.) 



? Discoporella porosa Haswell, 1879, "Cycl. Pol. Port Jackson", Proc. Linn. Soc. N. S. Wales, 



IV, p. 354- 

 ? Liclienopora wanganuiensis Waters, 1887, "Tert. Cycl. Bry. New Zealand", Q. J. Geol. Soc., 

 XLIII, p. 346 (with text-fig.). 



565. A. Stat. 125. Anchorage off Sawan, Siau Islands, 27 Metres; stone and some Litho- 



thamnion. 1 colony. 

 568. C. Stat. 105. 6°8'N., 121 19' E., 275 Metres; coral-bottom. 2 colonies. 

 ? sp.) 56S. D. Do. 1 colony. 



Of the specimens above indicated, 565. A. is a colony in poor condition. It is represented 

 in fig. 3 ; and, while agreeing with L. novae-zelandiac in the serial arrangement of its zooecia, 

 it differs from that species in having the rays biserial throughout, and in the form of its 



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