14 R. KIRKPATRICK. 



Gellius pilosus Kirkp. 



Gellius cucurhitiformis Kirkp. 



Gellius glacialis var. nivea Eidley and Dendy. 



Oceanapia tantula Kirkp. 



II. Sub-family Eenierinas Eidley and Dendy. 



Pyloderma latrunculioides (Ridley and Dendy). 

 Petrosia flstulata Kirkp. 

 Reniera scotti Kirkp. 

 Reniera dancoi Top'Sent. 



Sub-Order Astromonaxonellida, Dendy. 



Tribe Clavulida, Topsent. 



Family Spirastrellidae, Ridley and Dendy. 



Latrunculia apicalis var. biformis. 



(Plate XV., figs. 1-7.) 



Latrunculia apicalis Ridley and Dendy (15. p. 234). 



There are three specimens of the new variety. The one selected as the type is 

 massive and conical, 9 cm. high and 7*5 cm. broad at the base. The surface is covered 

 with the little disk-like poral papillae, but in place of many conical oscules, such as are 

 found in the typical form described by Ridley and Dendy, there is one large oscule 

 (16 mm. in diameter and much contracted) at the summit of the specimen. The chief 

 variation from the type is in the character of the discasters, of which there are two 

 kinds, one with an apical spike resembling that found in the typical form, but stouter 

 and shorter, and the other kind without the apical spike. Mr. Highley's figures show 

 the characters of these two forms ; the first kind is 362 /a long and 200 /a in greatest 

 breadth ; the second kind is 190 x 150 />i. All the specimens have what appear to be 

 reduced discasters, i.e., spined styles in which the toothed disks of the discaster have 

 become reduced to spines. The smooth styles are nearly straight, 325 x 12"5 ju., and 

 with tornote pointed ends. 



Two of the specimens are chocolate brown in colour, but a third is paler and has 

 more of the reduced discasters. One specimen is labelled " The green Sponge." The 

 alcohol in which they have been preserved is dichroic, being amber-coloured by 

 transmitted, and olive green by reflected, light. 



The specimens were all dredged near Winter Quarters in 10-15 fms. 



Latrunculia apicalis, var. basalis. 

 Latrunculia apicalis Ridley and Dendy (15. p. 234.). 



There is one small, thin cake-shaped specimen 30 X 20 mm. in area and 6 mm. 

 thick, of a light-brown mud colour. 



There are several of the discoidal raised pore-areas, and one conical oscular papilla. 

 The flagellated chambers are aphodal, 49 x 19 /a, the aphodus being 32'5 ju, long. The 



