50 UNITED STATES NATIONAL MUSEUM BULLETIN 296 



Dendrophylla axifuga Ed. and H., Great Barrier Reef, Aust. Mus. G6433. 



Dead coral rock, unidentifiable, Kwajalein, Marshall Islands (J.T.). 



Tridacna maxima from Heron Island, Australia (J.T.). 



T. maxima from Rowland Island, Bishop Museum BM67357. 



T. maxima from Christmas Island, BM67094. 



T. maxima from Jarvis Island, BM67149. 



Acropora studieri from Seto and Susami Bay, Japan (J.T.). 



From coral from Aspinwall (Panama, Caribbean side) and the Maldives Islands, 



courtesy of Dr. Willard Hartman and the Peabody Museum, Yale University. 

 From coral from Kuredo Island (Yale YP4179). 

 The original description was on material from Acropora palmata from Salt Gut, 



Jamaica, coll. S. A. Wainright. 



Type-material: Holotype: USNM 103729. Paratypes: CA; Seto; 

 Paris; Portobello Marine Station, New Zealand; Plymouth Labora- 

 tory, England. Additional material: Aust, BPB, Brit, Belg, BA, 

 DubUn, Mex, SFSC, Vict. 



A segment count of the terminal cirri of each side of one Kwajalein 



specimen follows : 



Terminal 



cirrus: 12 3 4 



Ramus: an- pos- an- pos- an- pos- an- pos- 

 terior terior terior terior terior terior terior terior 

 Right side: 19 28 30 34 29 ? ? 44 

 Leftside: 18 28 35 40 36 39 32 38 



As already mentioned, the genus Lithoglyptes is in a fluid state, 

 with new species not yet firmly estabUshed. For this reason, no de- 

 tailed description of this species will be given here. The reader is 

 referred to figure 7 and the original description (Tomlinson and 

 Newman 1960). 



Lithoglyptes ampulla Aurivillius, 1892, page 134 



Figure 8 



Diagnosis: Mantle aperture length one-fourth of the greatest 

 width of mantle, weakly arched, equipped on one side with two anchor- 

 hooks, the other side with two feeler-like jointed hooks; caudal 

 appendage four-jointed; whitish; 4.5 X 2.5 mm; one specimen from 

 coral in Java Sea. 



I did not see a specimen of this species. The above diagnosis em- 

 bodies most of what we know of this species. 



