HRACHYDRA. RATHBUN. 123 



The orbits are very wide, and the distance between the 

 subequal, triangular, superior notches is uncommonly long. 

 The four antero-lateral teeth are similar, having a triangular 

 base and a very slender terminal spine which is shorter in 

 the first or orbital tooth. In only the largest of the three 

 specimens is there a subhepatic spine; it is very short, but 

 visible in dorsal view. In the other two specimens there is 

 on the subhepatic region a cluster of about three sharp 

 granules, which is barely visible from above. The hair on 

 the carapace is very soft and of two sorts, a short, fine fur, 

 with small clusters of longer, coarser hairs, including a line 

 just behind the frontal lobes. These lobes are broadly 

 rounded, and are separated by a large notch; the outer 

 tooth of the front is rather wide as these teeth go, sub- 

 rectangular, and with a very small point ; the inner orbital 

 angle is obtuse and inconspicuous. Upper margin of orbit 

 and front finely granulated; lower margin with a definite 

 outer notch, followed by a short granulate edge and then 

 by sharp spinules mixed with granules. 



Chelipeds very unequal; merus with two spines at distal 

 end followed by spinules ; wrists and palms armed with 

 sharp tubercles or stout spines, which cover only half of 

 the larger palm, and are seriate on the smaller palm. The 

 brown colour of the fingers does not quite come to their 

 bases. The larger thumb has a punctate groove not far 

 above the margin; the dactylus is rough above near its 

 base. Fingers of smaller chela deeply grooved, and 

 roughened for half their length. 



PILUMNUS SPINICARPUS, Grant and McCulloch. 



Pilumnus spinicarpus, Grant and McCulloch, Proc. Linn. 

 Soc. ; New South Wales, xxxi., 1906, p. 15, pi. i., 

 figs. 2 and 2a, and synonymy. 



Seven miles north-north-east of J>owen, Queensland, 16 

 fathoms; E.3100; one female. 



Eleven to fourteen miles north-west of Pine Peak, 

 Queensland, 24-26 fathoms; E.3189; one female. 



South 29 east of Pine Peak, Queensland; P.5330; one 

 female, one young. 



Largest specimen (E.3100), length of carapace 9.8, 

 width 13 mm. 



