302 



RECORDS iiK THE AUSTRALIAN MUSEUM. 



Siiiiilaf iiistniiees of the open male corhula, as in .1. tii^mait- 

 ii'it, and ^l. ditinieriijl, are described by Tony and Miss Ami 

 Martinis Jn tbeir paper on " Sexual Dimorphism in Aglao- 

 j)lienia." 



Hydroclade-beai-ing intei'iiode, lengtli 

 Hydroclade-bearing internode, diameter 

 Hydroclade internode, length 

 Hydroclade internode, diameter 

 Hydrotheca, depth 

 Hydrotheca, bi-eadth at nn:)utlii*' ... 

 Corbula, length 

 Corbula, diameter 



0-8S-0-42 mm. 

 ■i2-0-43 mm. 

 0-39-0-42 mm. 

 0-19-0-21 mm. 

 0-35-0-38 mm. 

 0-19-0-21 mm. 

 np to 11 mm. 

 1 mm. 



J)isfrilttffiiiH. — Hitherto recoi'ded only from Ovster Bay, 

 Tasmania, 20 fathoms (Bale). 



15 Torry and Ann Martin — Publ. Univ. California, Zoology, iii., 4, 

 ]906, pp. 4.7-52. 



Distance from posterior wall to anterior tooth. 



