544 Transactions. 



Cavolina trispinosa (Lesueur). 



Hyalaea trispinosa Les. in Blainv. Diet. Sci. Nat., xxii, 82, 1821. 

 Recorded, Iredale, Pro. Mai. Soc, ix, 71, 1910. 



Habitat. — Dead shells washed up on the beaches, Sunday Island. 

 Distribution. — New Zealand ; all tropical and warm temperate seas. 



Cavolina longirostris (Lesueur). 



Hyalaea longirostris Les. in Blainv. Diet. Sci. Nat., xxii, 81, 1821. 

 Recorded, Iredale, Pro. Mai. Soc, ix, 71, 1910. 

 Kermadec specimens belong to the variety strangulata Hedley (Rec. 

 Austr. Mus., vi, 299, 1907). 



Habitat. — Dead shells frequently washed up on the beaches, Sunday 



Island. 



Distribution. — New Zealand ; all tropical and temperate seas. 



Cavolina inflexa (Lesueur). 



Hyalaea inflexa Les., Nouv. Bull. Soc. Philom., iii, 285, 1813. 

 Recorded, Iredale, Pro. Mai. Soc, ix, 71, 1910. 



Habitat. — Dead shells found on the beaches, Sunday Island. 

 Distribution. — New Zealand ; all tropical and warm temperate seas. 



Cavolina gibbosa (Rang). 



Hyalaea gibbosa Rang in d'Orb. Voy. Amer. Merid., v, 95, 1836. 



Habitat. — Dead shells rarely washed up on the beaches at Sunday Island. 

 Distribution. — All tropical and warm temperate seas. 



Cavolina quadridentata (Lesueur). 



Hyalaea quadridentata Lesueur in Blainv. Diet. Sci. Nat., xxii, 81, 

 1821. 

 Habitat. — Dead shells rarely washed up on the beaches, Sunday Island. 

 Distribution.— All tropical and warm temperate seas. 



Theceurybia gaudichaudi (Souleyet). 



Euribia gaudichaudi Soul, Voy. " Bonite," Zool., t. 2, p. 253, 1852. 

 Recorded, Pelseneer, " Challenger " Rep., xix, pt. 58, 55, 1887. 



Habitat. — Taken on the surface of the ocean between Sunday and 

 Macauley Islands (" Challenger " Expedition). 

 Distribution. — Philippines. 



Umbraculum umbellum (Martyn). 



Patella umbella Martyn, Un. Conch., iii, pi. 102, 1786. 

 Recorded, Iredale, Pro. Mai. Soc, ix, 71, 1910. 

 Habitat. — Living among rocks near low-water mark, Coral Bay, Sunday 



Island. 



Distribution. — Norfolk Island, New Zealand, Australia, Indian and Pacific 



Oceans. 



Heteroplocamus n. gen. for Euplocamus Philippi, preoccupied. 

 Type. — Euplocamus pacificus Bergh. 



