374 DR. W. M. TATTERSALL ON THE STOMATOPODA AND 



Synalpheus triunguiculatus (Paulson), 1875, p. 103, pi. 14, figs. 1-1 g- 



S. triunguiculatus, Nobili, 1906 a, p. 31. 

 S. triungicuulatus, Nobili, 1906 b, p. 25. 



Localities. Station V. 0, 2 ? , one with eggs, 10 and 12 mm. Station V. D, 

 one juv., 6 mm. Station VII. C, 1 S , 14 mm., 1 ? , with eggs, 15 mm. 



Remarks. These specimens agree very closely with Paulson's figures and 

 seem clearly referable to his species. 



Distribution. This species has been recorded from various localities in the 

 Red Sea by Paulson, Coutiere, and Nobili. So far as I am aware it has not 

 been taken in any other area of the Indo-Pacific Ocean, with the exception 

 of the Persian Gulf (Nobili, 1906 b). 



Synalpheus fossor (Paulson), 1875, p. 103, pi. 13. fig. 5. 



IS. fossor, Coutiere, 1905, p. 872, pi. 70. fig. 6. 

 See also De Man, 1911 o, p. 250, pi. 9. fig. 89. 



Localities. Station VIII. C, 3 ? , 7-11 mm. Station XL, fourteen speci- 

 mens, 4-10 mm. (in green sponge). 



Remarks. These specimens seem to combine the characters of the type- 

 form and the var. propinqua, De Man. They agree with the former in 

 having the carpocerite six times as long as broad, and with the latter in 

 having nine spinules on the propodus of the third pair of legs, and in the 

 proportions of the merus of these limbs. The strongly spinous corners of the 

 apex of the telson are always well marked, but they may be longer or shorter 

 than the first of the spines on the apex. This character does not seem to 

 vary with age. Otherwise these specimens are in the closest agreement with 

 Paulson's figures. 



Distribution. Recorded previously from the Red Sea by Paulson ; Maldive 

 Archipelago (Coutiere) ; the var. propinqua is known from various parts of 

 the Dutch East Indies and adjacent waters. 



Synalpheus heroni, Coutiere, 1909, p. 42, fig. 24. 

 S. heroni, De Man, 1911 b, p. 25G, pi. 9. fig. 41. 



Locality. Station IX. A, 4 ? (one ovig,), 7-10 mm. 



Distribution. Red Sea at Djibouti (Coutiere) ; Dutch East Indies 

 (DeMan). 



Paulsoni group. 



Synalpheus hululensis, Coutiere, 1908, p. 12. 



8. tumidomanus, Coutiere, 1905, p. 876, pi. 63. fig. 14. 

 S. hululensis, Coutiere, 1909, p. 24, fig. 4. 



Locality. Station IX. A, 1 <$ , 8 mm., 1 ovig. $ , 9 mm., 1 juv., 6 mm. 

 Remarks. Both the carpocerite and the inerus of the third legs are four 



