1/2 



'■: Heterocarpus alphonsi A. Alcock, Descript. Catal. Indian Deep-Sea Crustacea, 1901, p. 106. 

 ? Heterocarpus Alphonsi Th. R. R. Stebbing, Annals South African Museum, Vol. XV, London, 

 1914, p. 40. 



Stat. 38. April i. 7° 35'.4 S., II7°28'.6E. Bali Sea. 521 m. Bottom coral. 2 males and 4 

 females, 2 of which are ova-bearing; nearly all the specimens are adult. 



Stat. 45. April 6. 7°24'S., ii8°i5'.2E. Flores Sea. 794 m. Bottom fine grey mud, with some 

 radiolariac and diatomes. 15 specimens, 7 of which are adult males, the rest 

 young specimens. 



Stat. 85. June 17. 0°36'.5 S., II9°29'.5 E. Strait of Makassar. 724 m. Bottom fine, grey mud. 



2 males, one of which is full-grown, the other of medium size. 



Stat. 122. July 17. i°58'.5N., i25°o'.5 E. North of Menado. 1264 — 1165 m. Bottom stone. 



3 ova-bearing females and i male, all of medium size. 



Stat. 178. Sept. 2. 2°4o'S., I28°37'.5E. Ceram Sea. 835 m. Bottom blue mud. 2 young 



specimens. 

 Stat. 211. Sept. 25. 5°40'.7 S., I20°45'.5 E. Entrance of Gulf of Boni. ii5Sm. Bottom coarse 



grey mud, superficial layer more liquid and brown, i young specimen. 

 Stat. 267. Dec. 20. 5° 54' S., 1 32° 56.7 E. Kei-islands. 984 m. Bottom grey mud with a brown 



upper layer, i female without eggs. 

 Stat. 297. January 27, 1900. io°39'S., i23°4o'E. East of Rotti. 520 m. Bottom soft, grey 



mud with brown upper layer, i male. 

 Stat. 300. January 30, 1900. io°48'.6S., I23°23'.i E. East of Rotti. 918 m. Bottom fine, grey 



mud. I egg-bearing female. 

 Stat. 314. Febr. 17, 1900. 7°36'S., 117° 30'. 8 E. Bali Sea. 694 m. Bottom fine, sandy mud. 



26 specimens, viz. 9 adult or almost adult males, 3 adult ova-bearing females 



and 17 young specimens. 

 Stat. 316. Febr. 19, 1900. 7° 19.4 S., ii6°49'.5E. Bali Sea. 538 m. Bottom fine, dark brown 



sandy mud. 7 specimens, all adult excepting one, viz. 3 males and 3 females, 



2 of which are laden with eggs. 



Of this apparently common deep-sea species, that was founded on two females taken by 

 the "Challenger" off Banda Island, no less than 65 specimens were obtained by the "Siboga", 

 full-grown males, ova-bearing females and young individuals of different size, in various parts 

 of the Indian Archipelago. This large and well-preserved material enables me to augment our 

 knowledge of this interesting species. 



The 6 specimens from Stat. 38 are full-grown; in the largest male the carapace, measured 

 between the orbital and the posterior margin, proves to be 34,5 mm. long, the rostrum from 

 the orbital margin in a straight line to the apex 32,5 mm., the abdomen 83 mm., entire length 

 150 mm., in the largest ova-bearing female these numbers are in the same succession 36,5 mm., 

 36 mm., 92,5 mm. and 165 mm. The carapace, one and a half as long as high, is covered, 

 like the rostrum and the abdomen, with a short tomentum. In the younger male, of which the 

 carapace is 26,5 mm. long, the rostrum is one-fourth longer than the carapace, namely 

 33 mm., and apjiears hardly more recurved than in B.\te"s figure i9 o" Plate CXI; it is armed, 

 both dorsally and ventrally, with 14 teeth, that reach to the tip, gradually decreasing in size; 

 three teeth stand on the carapace, the i^' just in front of the middle, the 3"'^ just behind 

 the orbital margin and the 2'"^ tooth is but half as far distant from the i*' as from the 3"^^. 

 In the females taken by the "Challenger" only two teeth were placed on the carapace, the 

 3'^'^ above the eyes and the teeth of the rostrum proper were farther distant from one another 

 than in this male — but in other specimens of this collection, like in those from the Stations 



