FlSlIi;S AN'D CRU.STACKANS — McCU LLOCH. 353 



B.— CRUSTACEA. 



The trawl obtained three species, two of which, Lati-fiUupsis 

 petteixU, Grant, and Paiiddlns DKU-fius, A. M.-Edw. are dealt 

 with here. The third is i-eservcd for furthei- consideration. 



LATREILLID^. 



L.\TREILLOPSIS PETTEHDI, (rnnif. 



(Plate Ixv.). 



L(itrei//(i/)sts pi'tterdi, Grant, Proc. l^inn. Soc. N. 8. Wales, xxx., 

 1905, p. 317, pi. X., fig. 2. 



A giant specimen with a carapace measuring 79 mm. long 

 enables me to add further details to the oiiginal description of 

 this species. It is a male, and though presenting chara'jters 

 markedly different from Grant's description and figure, a com- 

 parison with the type in the Museum collection, which is only 

 6"55 mm long, convinces me that it is tlie adult of this sjiecies. 

 The following is a description of the specimen. 



Carapace subquadrilateral, but tlie width across the hepatic 

 regions narrower than the hinder margin ; the length to the ba.se 

 of the I'ostral spine very little more than the greatest breadth, 

 which is behind the middle of the lengtli. Sides vertical, the 

 greatest depth, which is at the base of tlie chelipeds, just half the 

 length. 



Rostral spine slightly deflexed, about half as long as the 

 supraocular spines, its base broad and depressed. Supraoculars 

 uptilted and armed with two spines, the one nearest the base 

 directed outwards and upwards, and the other outwards only. 



Whole carapace, with the exception of the frontal and hepatic 

 rt!gions, covered with small granules which are more numerous 

 along the lateral and posterior margins. Regions moderately 

 well defined. The middle and medio-lateral parts with deep 

 grooves. Linea anomurica distinct. Epigastric region with two 

 large sub-spiniform granules, and smaller approximated ones 

 between them. Proto-, meso-, and metagastric regions each with 

 a large tubercle, that of the first-named being spiniform and tlie 

 a!iterior of a series of six arranged parallel with the sides of the 

 carapace. Cardiac and epibranchial regions prominent, with 

 larger (worn) tubercles. Hepatic region inflated, with three large 

 mammiliform spines above and three smaller ones below. A 

 similar spine at the anterior hepatic angle and another above the 

 base of th(> antenna^. 



