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



Beyond this difference there is no other substantial disagreement with the 

 characters of the latter species which can be noted in the absence of the 

 walking-legs. 



Athanas parvus, De Man, 1910, p. 515. 

 See De Man, 1911 b, p. 148, pi. 1. fig. 4. 



Locality. Station V. B, 2 ? , 7 mm., carrying eggs. 



Locality uncertain. 1 <J , 8 mm., labelled as part of the fauna of two dead 

 valves of M. margaritifera which were covered by sponges and supported a 

 regular microcosmos of life; 1 ovig. ? , 7 mm., labelled Crust, fr. 44. 



Remarks. It is with some reserve that I refer these specimens to De Man's 

 species. They agree, as far as they go, with his description, except that the 

 rostrum somewhat exceeds and the stylocerite does not quite extend to the 

 distal margin of the second joint of the antennular peduncle. In the form 

 of the extra- and infra-corneal apines, the proportions of the first pair of 

 legs in the female, and the bi-unguiculate character of the dactylus of the 

 three posterior pairs of legs, they agree well with De Man's observations. 

 The male specimen unfortunately is devoid of all the walking-legs. 



Distribution. S. coast of Timor (De Man). 



New to the fauna of the Red Sea. 



Athanas crosslandi, n. sp. (PI. 27. figs. 13-17.) 



Locality. Station V. C, 2 ovig. $ , 6 and 7 mm. 



Description. The rostrum reaches forward to the middle of the third joint 

 of the antennular peduncle. There is no supra-orbital spine. The extra- 

 corneal spine (PI. 27. fig. 13) is remarkable for its great length, being 

 almost half as long as the rostrum and extending for half its length beyond 

 the eye. The infra-corneal spine is quite short. The antennular peduncle 

 (PI. 27. fig. 14) is somewhat short and robust with the last two joints 

 subequal in length. The stylocerite reaches to the middle of the second 

 joint. The antenna! scale (PL 27. fig. 15) is equal in length to the 

 antennular peduncle and is twice as long as broad, with the terminal 

 spine of the outer margin well developed but not projecting beyond the 

 scale itself. The carpocerite reaches the distal end of the second joint of 

 the antennular peduncle. 



Legs of the first pair in the female (PI. 27. fig. 16) equal and feeble, and 

 of the form characteristic of the nkescens group. The merus is one and a half 

 times as long as the carpus and one quarter shorter than the whole chela. 

 The proportions of the limb are, taking the fingers as 1 : merus 2, carpus l - 3, 

 palm 1'6, fingers 1. 



The second pair of limbs are long and slender. The proportions of 

 the joints of the carpus are 4 : P45 : 1*27 : 1 : 1"72. The whole chela 



