PROF. THOMSON AND MR. McyUEES — REPORT OS THE ALCVON.VRIANS. '.):> 



(2) Smooth spindles with only a few spines : 102x0 15; 0-72 xO'l.',: 

 • 6 X 0075 ; 0-55 x 0075 ; 0-42 x 0-1 ; 04 X 00.^) : 0-275 x 0-04 ; 

 0-2 X 0-05. 



The colour of the colonj- in spirit is light yellow. 

 Locality. — Khor Dongola. 



Nephthya Z^XZIBAREXSts, Thomson and Henderson. 

 See Thomson aud Henderson, 1906, loc. eit. p. 421, pi. xxvii. fig. 3. 



A specimen which seems to be referable to this species differs from thi" 

 type in being distinctly more rigid; that is to sa}', more densely filled wiili 

 spicules. 



Locality. — Engineer Island, Khor Dongola. Previously recorded from 

 Wasin Channel, Zanzibar. 



Nephthya albida (Hohn). 



= Spomjodes albida, Holm. 



See O. Holm : " Beitragre zm' Keniitniss di'r Ale yoiiiden-Gattung Sj)o>i</odes," Znol. 



.lahrb. viii. (1895) p. 30, 3 figs. 

 See Kukenthal, 1903, loc. cit. p. 160. 



A specimen which seems referaljle to this species differs from the type in 

 having the polyp-body covered with very numerous small spicules without 

 definite arrangement in double rows. In other words, the larger polyp- 

 spicules arranged in chevron are not represented. In including Nephthya 

 jagerskioldi with Spongodes gavignyi, Kiikenthal notes the same kind of 

 variation which we believe to have occurred here, namely a replacement 

 of fewer larger spicules on the part of the polyp-wall by more numerous 

 smaller spicules. This cannot be regarded as of systematic importance. 



Locality. — Suakim Harbour. Previously recorded from the Red Sea. 



Spongodes * hemprichi, Klunzinger. 



See Klunzinger, 1877, loc. cit. 

 Kukenthal, 1904, loc. cit. 



Kukenthal : " Versuch einer Revision der Alcyonarien. U. Die Familie der 

 Nephthyiden, 2 TeU," Zool. Jahrb. xx.xi. (1905) pp. 503-726, 7 pis. & 61 figs. 



Several colonies in the collection are evitiently referable to a group of 

 species which Kukenthal speaks of as closely allied, namely, S. hartmeycvi^ 

 S. mayi, S. klunzingeri, S. ehrenbergi, and S. hemprichi. 



* According to Kiikenthal, the generic name Spongodes sliould be replaced by another and 

 ho suggests Dendronephthyii ; see page 74. 



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