.78 



DISCOVERY REPORTS 



Idanthyrsus pennatus (Peters). 



Johansson, 1927, p. 88, with synonymy. 



St. 2. 



17. XI. 25. 



Clarence Bay, Ascension Island, Catherine's Point and CoUyer Point. Shore 



1 TXmiT 



0-'- 



Fig. 74. Idanthyrsus 

 pennatus. Outer palea. 



collection. Four specimens. 



Remarks. I have compared these examples with a number of 

 specimens from the Pacific attributed to this species, and also 

 with the type specimen of Mcintosh's Sabellaria johnstoni, and 

 I can find no distinction between these Atlantic examples and the 

 Pacific forms. I believe this to be the first record of this species 

 from the Atlantic. 



The palm-leaf shaped outer paleae (Fig. 74) are probably 

 characteristic of the species. There is only a single pair of large 

 dorsal hooks. Johansson, writing of the opercular peduncles, says : 

 " Ihr vorderer freier Rand tragt keine Papillen." If he means the 

 peduncular wall just external to the outer paleae, his statement is 

 supported neither by these specimens nor by the Pacific forms 

 examined by me. In all examples' this wall has a row of papillae: 

 in old and ill-preserved specimens many of these papillae are 

 often lost. 



Family STERNASPIDAE 



Genus Sternaspis, Otto 

 Sternaspis scutata (Ranzani). 



Fauvel, 1927, p. 216, fig. 76 a-g, with synonymy. 



St. 45. 6. iv. 26. 2-7 miles S 85° E of Jason Light, South Georgia. 238-270 m. Gear NCS-T. 

 Bottom: grey mud. Twelve specimens. 



St. 144. 5. i. 27. Off mouth of Stromness Harbour, South Georgia. From 54° 04' S, 36° 27' W 

 to 53° 58' S, 36° 26' W. 155-178 m. Gear NCS-T. Bottom: green mud and sand. Three specimens. 



St. 162. 17. ii. 27. Off Signy Island, South Orkneys. 60° 48' 00" S, 46° 08' 00" W. 320 m. 

 Gear DLH. Bottom : green mud. Ninety-five specimens. 



St. 167. 20. ii. 27. Off Signy Island, South Orkneys. 60° 50' 30" S, 46° 15' 00" W. 244-344 m. 

 Gear N 4-T. Bottom: green mud. Seventy specimens. 



St. 177. 5. ill. 27. 27 miles SW of Deception Island, South Shetlands. 63° 17' 30" S, 61° 17' 00" W. 

 1080 m. Gear DLH. Bottom: mud and stones. Three specimens. 



St. i8i. 12. iii. 27. Schollaert Channel, Palmer Archipelago. 

 160-335 m. Gear OTL. Bottom: mud. Sixty specimens. 



St. 182. 14. iii. 27. Schollaert Channel, Palmer Archipelago. 

 278-500 m. Gear N 4-T. Bottom: mud. Sixty-five specimens. 



St. 187. 18. iii. 27. Neumayr Channel, Palmer Archipelago. 64° 48' 30" S, 63° 31' 30" W. 

 259 m. Gear DLH. Bottom: mud. One specimen. 



64° 20' 00" S, 63° 01' 00" W. 

 64° 21' 00" S, 62° 58' 00" W. 



