229 



Between 40 and 120 miles west of Eucla, about the 100- 

 fathom line, 4 examples were taken. Two, which were mature, 

 measured only 80 mm. in length by 32 mm. in breadth and 

 71 mm. by 30 mm. One nearly mature, 65 mm. by 29 mm., 

 and one immature, 53 mm. by 22 mm. A specimen from Port 

 Victor measures 105'2 mm. by 50 mm., and one from Victoria 

 124 mm. by 59 mm. ; so that the deep-sea examples are much 

 smaller and proportionately narrower. But their colour is 

 typical, though faint (all were dead shells). They all show 

 the typical proximity and heaping up of three plaits, with a 

 very small plait behind these, and a distinct anterior plait 

 close to and almost forming the border of the canal, though 

 this last was absent from the juvenile example. One of the 

 mature individuals showed obsolete axial costse on the base 

 of the body-whorl, just beyond the inner lip, so approxi- 

 mating to var. kenyoniana, Brazier. Further east the trawler 

 'Endeavour" had taken several examples of this variety, pro- 

 bably to the east of Bass Straits, all dead. A mature micro- 

 morph was 65 mm. long by 32'5 mm. broad, the largest was 

 112 mm. long by 49 mm. broad. The costae are more numerous 

 than in the type of the variety described by Brazier (19 to 20), 

 54 being counted in the penultimate whorl. But their validity 

 and their number vary in the examples examined. In the 

 micromorph they are less crowded, and in another specimen 

 they are almost absent from the body- whorl. The protoconch 

 and ornament resemble those of the specific type. I have had 

 one of these figured on pi. xiv., figs. 2, 3. 



Since writing the above Mrs. Agnes Kenyon has kindly 

 lent me the type specimen of Brazier's species for comparison. 

 This can scarcely be said to have 19-20 obtuse ribs, as he 

 describes it. On the body- whorl 44 axial costse can be 

 counted, and none in the last inch from the aperture. These 

 are rather sharp at their summits, but broad at their bases, 

 and vary very greatly in their size and proximity. In the 

 penultimate there are about 50, but they are so irregular 

 in size and nearness that it is difficult to count them, and 

 they scarcely can be called ribs, but are rather irregular axial 

 costulse. The figs. 2 and 3 on pi. xiv. are an almost exact 

 reproduction of the type, though taken from an "Endeavour" 

 specimen in my collection. 



Cymbium flammeum, Bolten. 



Cymbium flammeum, Bolten, Mus. Boltenianum, 1798. p. 151 

 No. 1899, No. 3. 



Voluta diudema, Lamarck, Ann. du Mus., vol. xvii., p 57 

 No. 1. ' 



