TRACHYPENEUS SALACO. 135 



9. Trachypeneus salaco, ii. sp. 



Station 205. Lohio-bay, Buton-strait. Depth 22 M, 

 Station 258. Tual-anchorage, Kei-islands. Depth 22 M. 



In its outer appearance much resembling Track, anchoralis 

 (Sp. Bate). Body, especially the carapace, more or less 

 tomentose and finely scabrous. Rostrum with the lower 

 margin somewhat ascending and reaching just beyond the 

 1st joint of the antennular peduncle, with 8 or 9 teeth in 

 addition to the epigastric tooth that is situated at the 

 anterior fourth of the carapace. Postrostral crest obtuse, 

 reaching to the posterior margin of the carapace. Abdominal 

 terga carinate in the same manner as in Track, ajickoralis. 

 Telson on each side with 4 small spinules, as in Track, curvi- 

 rostris (Stimps.). Both pairs of antennae, maxillipedes and 

 thoracic legs closely resembling those of Trach. anckoralis. 



Petasma symmetrical, not yet half as long as the cara- 

 pace without the rostrum ; the stem ends distally in two 

 large horns that arc at right angles with the rest of the 

 organ and that, suddenly narrowing, are inwardly curved, 

 each horn ending in a raucronate tip. From the transverse, 

 anterior margin of each horn a flattened, triangular lamina 

 projects foreward at an obtuse angle with the surface of 

 the horns. This species, at first sight distinguished by its 

 petasma, is also remarkable, because the thoracic legs of 

 the 1st and 2^'^ pair seem to be devoid of an epipodite, 

 this appendage being only present on the legs of the Sr^ pair. 



Length of male 42mm., 



10. Atypopeneus dearmatus, n. sp. 



Station 302. Lat. 10°27'9 S. ; long. 123°28'7 E. Depth 



216 M. 

 Station 306. Lat. 8°27'S.; long. 122°54'5 E. Depth 



247 M. 

 Station 312. Lat. 8°19'S.; long. 117°4r. Saleh- 



bay, north coast of Sumbawa. Depth 274 M. 



In its outer appearance resembling Atyp. compressipes 



]N'otes from the Leyden Museum, Vol. XXIX. 



