The Sympoda. 141 



The two species here added to the genus are distinguished from 

 B. arenosm, Goodsir, 1843 ; B. pulcx, Zimmer, 1903 ; and B. 

 similis, B. siainensis, B. parous, ail three established by Caiman in 

 1907, because those five species have the inner branch of the uropods 

 simple, whereas the new species have it two-jointed, in agreement 

 with B. scorpioitlcs (Montagu), 1804; B. fjibbus (Sars), 1879; B. 

 pulcliellus (Sars), 1879 ; and B. sublcvis, Caiman, 1907. But while 

 each of the four last-mentioned species is provided with an eye, that 

 organ is apparently wanting in the two new species. 



BODOTRIA MONTAGUI, 11. Sp. 



Plate LI.A. 



This species is closely related to Bodotria scorpioides (Montagu), 

 but exhibits the following points of difference in the female sex, to 

 which the single specimen belongs. The integument is not hard 

 and strong. The eyelobe shows no trace of an eye. The carapace 

 exhibits a pair of oblique grooves, diverging near the middle back- 

 wards from the central carina. In the first antennae the third joint 

 is not longer than the second. The second maxillipeds are without 

 the six strong spines on the distal part of the second joint's outer 

 margin, that part being furnished with four very slight setules. The 

 third maxillipeds have the second joint narrowed in the middle. In 

 the tirst perteopods the fifth joint, though decidedly longer than the 

 sixth, is considerably shorter than the sixth and seventh combined. 

 In the second perasopods there is a faint indication of the third 

 joint, but with incomplete articulation. In dorsal outline the fourth 

 pedigerous segment is not separated from the third and fifth by any 

 deep incisions, and the telsonic segment is little produced between 

 the peduncles of the uropods. 



The comparison has been instituted between the South African 

 specimen and the excellent figures and description given in 1879 

 and 1899 by Professor Sars of " Ciima Edivardsii, Goodsir," which 

 is now recognised as a synonym of Bodotria scorpioides (Montagu). 

 Though the differences above mentioned are rather numerous, the 

 points of resemblance are also so many and so close that it seems 

 unnecessary to repeat descriptions practically available in the 

 writings of Professor Sars. Among the minute details which he 

 oives is a character of the first maxillae, the elongate palp of which 

 has its unequal apical filaments furnished with little lateral hairs 

 pointing in different directions. It is difficult to see the hairs at 

 all, but in the southern specimen some point upwards and some 

 downwards as described by Sars for the northern species. 



