56 DR. W. RAE SHERRIFFS ON EVOLUTION 



with Henderson's description and figure. Tlie supporting bundle 

 is moderately developed and lias about 3 projecting spindles, 

 one of them slightly longer than the othei's. The projecting 

 portion is about a third of a millimetre in length. 



7. Other spicules. What is most cha- 

 racteristic of this specimen and Hender- Text-fig. 15. 

 son's is the appearance of many of the 

 stalk spicules. They are spindles straight 

 aiTid curved, spindles approa'ching clubs 

 and very rough at the broad end, irre- 

 gular bodies and many quadriradiates, 

 all marked by the length and strength 

 of their spines and protuberances, which 

 are sometimes compound and often tu- 

 berculate. Some of the curved spindles 

 have these prominent processes especially 

 strong about the middle, while others 

 are veiy markedly unilateral, with a few 

 tubercles on one side and a great array j>. mirahiUs Heud. 

 of long, often divaricate processes on the 



other. These unilateral processes are strongest at one end of 

 the spicule and wane towai-ds the other. Among the extra- 

 ordinaiy forms, which present an appearance unusual in the 

 genus, there are commonplace straight spindles with small regular 

 spines and tubercles. 



Localities : — Stations 99 and 282. 



9. Dendronephthya flammea (sp. n.). 



Diagnosis : — Divaricate ; outline quite irregular ; markedly 

 flattened ; lower branches somewhat foliaceous ; polyps in small 

 branches of 3-6, but many isolated polyps occur ; polyp stalks 

 very short ; supporting bundle strong ; point spicules one strong 

 pair ; crown of 4-5 rows of straight rough spindles ; grade VI. ; 

 spicules : sterile stalk has large rough yellowish spindles along 

 with small red interlocking forms ; no spicules found in the 

 canal-walls ; colour : brilliant red as a whole, spicules of the 

 branches and twigs deep red. 



Anthocodial Grade and Formula : — 



VI. = 2 P + 3-4 Or + strong S.B. 



Descriptive Notes : — 



1. Colony as a whole. Two colonies, the larger measuring 

 17 cm. in height, including the 3"5 cm. sterile stalk, by 10 cm. 

 in breadth. 



2. Branching. Divaricate, quite irregular in contour, markedly 

 flattened. The lower branches are somewhat foliaceous, but do 

 not form a collar. It ought to be referred to the cervicornis group 

 of Kiikenthars Divaricatse and to the subdivision with short 

 polyp stalks ; but it does not agree with any of the three species 



