APPENDIX TO ALCYONARIA. 



175 



2. Polyps of Caligorgia similis. 

 (a) The abaxial rows are formed by 7 scales. 



(/*) Of the outer lateral rows only one large distal 



scale is left, 

 (r) No scale of the inner lateral row is visible when 



the polyps are seen from the side. 



('/) The 5 proximal abaxial scales are produced 

 laterally and replace the missing outer lateral 

 scales. 



(e) No prominences are developed ; the teeth are 

 few and feeble. 



1. Polyps of Herdman's Species. 



() The abaxial rows are formed by 10 (or 11) 



scales each. 

 (!>) The outer lateral rows are but little reduced 



consisting of 5 scales each. 

 (') When the polyps are seen from the side, the 



distal scale of the inner lateral row is clearly 



visible. 

 (i/) The abaxial scales show no well-developed 



extensions over the sides of the polyps, 



though such an extension is clearly indicated 



in some of them. 

 (e) The outer surface of the scales of the polyps is 



covered with prominences radiating from the 



nucleus and partly ending in teeth at the 



upper border of the scales. 



In both species the outer surface of the scales of the coenenchyma is covered with 

 anastomosing prominences, many of which end in a tooth at the border of the scales. 

 These prominences give a typical appearance to the scales of the coenenchyma ; they 

 are more strongly developed in Herdman's species than in C. similis. They are also 

 found in some pinnately branched species of Caligorgia, for instance, C. verticillata 

 and C. sertosa. 



From this comparison it may be concluded that the Caligorgia in the collection 

 made by Professor Herdman is a new species, recognisable by its dichotomous 

 ramification, its delicate habit, the small number of polyps in each whorl, its very 

 small polyps, and by the comparatively large number of scales covering the polyps. 



I have to thank Professor Herdman and Professor J. Arthur Thomson for their 

 kindness in sending me some material to study this species. In many respects it 

 resembles C. verticillata. The description given of this last species under the name 

 Primnoa ellisii, by von Koch, though excellent and valuable in many respects, does 

 not give many morphological details, especially in regard to the arrangement and 

 form of the scales in the polyps. A renewed investigation was necessarv to make 

 out how far it is different from Herdman's specimen. This investigation has shown 

 conclusively that the two are different species, but it is readily comprehensible that 

 Professor Thomson was led by von Koch's description to consider the species as 

 identical." 



Locality : Deep water off Galle. 



Family : MURICEID^E. 



Bebryce indica, n. sp. Plate, fig. 3. 



The collection included several specimens of a Muriceid, which we have, with some 

 hesitation, referred to the genus Bebryce. It agrees with this genus in its general 

 features, but differs considerably in its spiculation from B. mollis, von Koch, 



