159 



following gradually diminish in length. Dactyli very long and slender, a little more 

 than on e- half to two-thirds the length of the propodi. 



Eggs very numerous and small, 0,6 — 0,65 mm. long and 0,5 mm. broad. 



Table of Measurements in millimeters. 



Carapace 

 Rostrum 



Formula 



Carapace 

 Rostrum 



Formula 



26 



25,5 

 30 



2 

 5 



N° 1 — 6 Stat. 5, N u 1 and 2 females with eggs, N" 3 — 5 females without eggs, N° 6 

 young; N° 7 — 10 Stat. 12, N° 7 male, N° 8 and 9 females without eggs, N° 10 young; N° 1 1 

 and 12 Stat. 74, N° 11 ova-bearing female, N° 12 female without eggs; N° 13 ova-bearing 

 female from Stat. 254; N ,J 14 — 26 Stat. 256, N° 14 and 15 adult males, N° 16 — 26 ova- 

 bearing females. 



General distribution: Andaman Sea (Alcock). 



2. Heterocarpus laevigatus Bate. PI. XIII, Fig. 37 — 37^. 



Heterocarpus laevigatus C. Spence Bate, Report Challenger Macrura, 1S88, p. 636, PI. CXII, 



fig- 3- 

 Heterocarpus laevigatus A. Alcock and A. R. S. Anderson, in: Annals Mag. Nat. Hist. Ser. 7, 



Vol. III, April 1899, p. 285; A. Alcock, Descript. Catal. Indian Deep-Sea Crustacea, Calcutta 



1901, p. 105. 

 Heterocarpus laevigatus Th. R. R. Stebbing, in: Annals South African Museum, Vol. XV, 



London 1914, p. 40. 

 Illustrations of the Zoology of the Investigator, Crustacea, Plate XLII, fig. 1, la. 



Stat. 215a. October 29. West IOOO m. distant from North point of Kabia-island reef. Banda 

 Sea. 500 m. Bottom stone. 1 male of medium size. 



The carapace is 27 mm. long, the rostrum, measured in a straight line from the orbital 

 margin to the apex, 34 mm., while the abdomen is 60 mm. long, entire length 121 mm.: the 

 largest male and female of this species that are known, measured, however, respectively 181 mm. 

 and 165 mm. (A. Alcock, 1. c. 1901). The rostral carina is armed dorsally with 6 teeth, of 

 which the 5 th is placed above the orbital margin, the foremost one just in advance of the 

 eyes; ventrally there are 10 teeth, like in the specimen from the Cape Colony, recorded by the 

 Rev. Stebbing. Apart from the somewhat different toothing of the rostrum, our specimen resembles 

 the lïgure in the "Illustrations", except that the dorsal border of the 3 rd abdominal somite 

 appears in the male from Stat. 2i5 a more strongly curved, like in the figure of Spence Bate. 



When the carapace both of Heteroc. gibbosus Bate and of Heteroc. laevigatus Bate is 



