432 



As is proved by the measurements of Table B, the first pair of legs of the female from 

 Stat. i 2 appear of a somewhat stouter shape than in the other specimens of the variety leptopus, 

 approaching to the variety dolichodactylus. In this female the cutting-edge of the dactylus of the 

 smaller chela is armed with a long, conical tooth near the articulation and opposite to it one 

 observes three or four much smaller teeth on the immobile finger; in the female from Stat. 19 

 these teeth are wanting, while in the variety dolichodactylus they are developed. Unfortunately 

 in this specimen from Stat. 1 2 the antennae, the antennules and the four posterior legs are 

 missing, it remains therefore doubtful whether this specimen belongs also to the variety leptopus. 

 This egg-bearing female is 24 mm. long. 



General distribution: The typical A . malabaricus is common in the backwater 

 at Pulicat (Coromandel coast) and apparently burrowing in a muddy bottom (Henderson). The 

 variety dolichodactyla occurs in the Bay of Tokyo (Ortmann). 



f 66. Alpheus parvirostris Dana. 



Alphens parvirostris J. D. Dana, U.S. Explor. Exped. Crustacea. p. 551, PI. 35, fig. 3. 

 Alpheus parvirostris J. G. de Man, in: Archiv f. Naturgeschichte, 53. Jahrg. 1888, p. 517 and 



in: Abhandl. Senckenb. Naturf. Gesells. XXV, 1902, p. 886. 

 Alpheus parvirostris A. Ortmann, in: Zoolog. Jahrb. V. Abth. f. Syst. 1890, p. 4S3. 

 Alpheus parvirostris H. Coutière, Alpheidae Mald. and Laccad. Archip. 1905, p. 906. 

 Alpheus lineifer E. J. Miers, in: Annals Mag. Nat. Hist. (4) Vol. XVI, 1875, p. 343. 



Stat. 19. March 19/21. 8°44'.5 S., 116° 2'.^ E. Bay of Labuan Tring, West coast of Lombok. 

 18 — 27 m. Ri ver-mud, coral, coralsand. 3 specimens, one of which with eggs. 



Stat. 60. April 27/28. Haingsisi, Samau-island near Timor. Shore. 1 male and 1 egg-bearing 

 female. 



Stat. 71. May 10 — June 7. Makassar. Depth up to 32 m. Mud, sand with mud, coral. 

 1 specimen. 



Stat. 78. June 10/11. Lumu-Lumu-shoal, Borneo-bank. Reef. 3 specimens, 2 of which with eggs. 



Stat. 91. June 22. Muaras-reef, inner side, East coast of Borneo. 2 egg-bearing females. 



Stat. 93. June 24/25. Pulu Sanguisiapo, Tawi-Tawi-islands, Sulu-archipelago. Reef. 1 male. 



Stat. 125. July 18/19. Anchorage off Sawan, Siau-island. Reef. 2 specimens, one of which 

 with eggs. 



Stat. 131. July 24/25. Anchorage off Beo, Karakelang-islands. Reef. 1 young male. 



Stat. 152. August 12/13. Wunoh-bay, N.W. coast of Waigeu-island. Reef. 1 male and 1 ova- 

 bearing female. 



Stat. 220. November 1/3. Anchorage off Pasir Pandjang, West coast of Binongka. Reef. 1 egg- 

 bearing female. 



Stat. 261. December 16/1S. Elat, West coast of Great Kei-island. Reef. 1 young specimen. 



With regard to this species, which is one of small size, the following may be remarked. 

 At either side of the acute, narrow, compressed rostrum, that almost reaches to the end of 

 first antennular article, the anterior margin of the front bears a triangular, though rounded 

 prominence. Corneae large, as broad as the interspace between them, sometimes even broader 

 than that distance as e. g. in the two specimens from Stat. 125. Second joint of antennular 

 peduncle as long or hardly longer than the visible part of the first. Stylocerite ending in a 

 spine that more or less extends beyond the first article and sometimes even reaches to the 

 2 nd fourth part of the second article ; according to Dana the stylocerite should be shorter than 



