102 Bulletin Vanderhilt Marine Museum, Vol. Y 



1917.— Balss, H., Denksch. Akad. "Wiss. Wien, Bd. 99, p. 7, 1924; 

 Archiv. fur Naturg. Bd. 90, Abt. A, heft 5, p. 70, 1924. 



Genus : LOPHOZOZYMTJS A. Milne Edwards. 

 Lophozozymus octodentatus (H. M. Edwards). 



Plates 54 and 55. 



Type : The type habitat was not stated ; the type is deposited in the 

 Paris Museum collections. 



Distribution: Fee Jee Archipelago, (Lucas); Philippines, Java, 

 (Miers) ; Java Sea, West coast of Borneo at Pontianak, (de Man) ; 

 Singapore, (Walker, Alcock) ; northwest coast of Australia, Cape 

 Grenville, Australia, (Haswell) ; Port Molle, New South Wales, 

 Darnley Island, Nicol Bay, Northwest Australia, (Miers) ; Tahiti, 

 Society Islands, (Boone). 



Material examined: A large male and female taken on Venus 

 Point Reef, Tahiti, Society Islands, South Ocean, August 15, 1931. 



Technical description : Carapace three-fifths as long as wide, 

 smooth, highly polished; gastric region circumscribed and partly 

 divided by a median sulcus ; hepatic and branchial regions also sepa- 

 rated by wide, smooth shallow grooves. Frontal margin narrow, con- 

 sists of paired, widely rounded submedian lobes, separated from the 

 small blunt inner orbital tooth. The anterolateral margin is cut into 

 four sharp teeth, the first of which is separated from the orbital 

 angle by a distinct sulcus; the first tooth varies from blunt to moder- 

 ately sharp, the second tooth is similar to the first. The third tooth is 

 much stronger, and more acute, while the fourth tooth is the most 

 prominent of the series. The hepatic region behind the first and second 

 teeth is tumid, as is also the branchial region inside the third tooth, 

 while a keel or ridge runs inv/ard from the fourth tooth ; the posterior 

 margins are convergent, while the posterior margin is emphasized by a 

 flat carina. Three closed sinuses occur on the orbital border near the 

 outer angle. The antennules fold almost transversely, the inter-anten- 

 nulary septum is broad. The basal antennal article is short and broad, 

 touching the lower margin of the superior orbital border at the inner 

 angle, and at the outer angle not reaching to the orbital tooth; the 

 flagellum is minute, lies in the orbital sinus and does not extend be- 

 yond the orbital tooth. The external maxilliped is close fitting, 

 smooth except for a longitudinal sulcus on the ischium; the median 

 and anterior margins are closely setose. The eye is short, bulbous, 

 with a thick, calcareous stalk, and a smaU subelliptical eye, set ob- 



