Boone, Crustacea, Cruises of ''Eagle" and "Ara," 1921-28 45 



Tribe: OXYSTOMATA. 



Family: Dorippidae. 



Genus: DORIPPE Fabricius. 



Dorippe lanatus (Linn6). 



Plate 8. 



DiGNOSTic CHAEACTERS: Carapace shield-shaped, flattish, regions 

 sharply defined, but little convex, grooves deep, the cardio-intestinal 

 region sharply circumscribed ; a rosette-like arrangement of five radi- 

 ating rugae occurs on the summit of the intestinal region. The entire 

 dorsal surface of carapace and legs is covered with a thick, short, 

 dirty yellow pilosity. 



Type : Linnaeus ' type came from the Mediterranean Sea. 



Distribution : Mediterranean Sea, Gibraltar and adjacent Atlantic 

 shores. Usually found in depths ranging from 50 to 100 meters. Also 

 West Africa, down to the Cape of Good Hope. 



Material examined: Two males and one female dredged in 35 

 fathoms, five miles northeast by north of Cape Carthage, Gulf of 

 Tunis, Mediterranean Sea, July 21, 1927. One vigorous female dredged 

 in 100 fathoms, nine and one-half miles East by South ^ South from 

 Cape Bon Tunis, North Africa, July 19, 1927, by the ''Ara," WiUiam 

 K. Vanderbilt, commanding. 



Technical description : Carapace flattish, regions sharply defined, 

 but little convex, interorbital region 9 mm. wide; rostrum less pro- 

 tuberant than the inferior inner orbital tooth, narrow, shallowly bi- 

 dentate, the space between the rostral teeth widely U-shaped ; the tips 

 of the inner maxillipeds fitting between these on the lower side and 

 forming a tube-like channel; posterior to the depressed rostrum and 

 on a higher plane are the subequal preorbital teeth. The orbital cav- 

 ity is deep, oblique, with the postorbital tooth acuminate, more pro- 

 tuberant decidedly than the preorbital. The anterolateral margins are 

 oblique, decidedly divergent posteriorly; a short, acuminate spine 

 marks their union with the posterolateral margin which is broadly,^ 

 evenly rounded; the posterior margin is sinuate. The entire dorsal 

 surface is covered with a dense pilosity composed of short, close, club- 

 like hairs. The intestinal and cardiac regions are circumscribed by a 

 deep groove ; the cervical groove runs outward and forward, bifurcat- 

 ing, one branch extending out to the lateral margin and the other 



