REPORT ON THE BRACHYURA. 
93 
absent or but slightly developed. Chelipedes very considerably elongated, palm and 
merus usually armed with strong spines. 
The pterygostomian regions are sometimes slightly excavated and carinated, but the 
smooth deep channel characterising the subgenus Aulacolambrus is not developed. 1 
The species referable to this subgenus may be divided into two sections as 
follows : — 
1. Merus-joints of ambulatory legs more or less spinose or tuberculated — 
Atlantic ancl Mediterranean Species. 
Lambrus macrocheles (Herbst) = Lambrus mediterraneus, Roux. Mediterranean ; 
West Africa, to 49 fathoms (Stucler). 
Lambrus rugosus, Stimpson. Cape Verde Islands (to 20 fathoms). 
Lambrus bouvieri, A. Milne Edwards. St. Vincent. 
Lambrus setubcdensis, B. Capello. Setubal. 
Lambrus verrucosus, Studer. Ascension Island (to 60 fathoms). 
. Lambrus pourtcdesii , Stimpson. Florida Straits (to 117 fathoms). 
Lambrus fraterculus , Stimpson. Florida Straits (to 68 fathoms). 
Indo-Pacijic Species. 
Lambrus longimanus (Linne?). Indo-Pacific Region (to 100 fathoms). 
Lambrus contrarius (Herbst). “ East Indies ” (Herbst) ; Samboangan, 
Philippines ; Mauritius. 
Lambrus echinatus (Herbst). India (Coromandel, Pondicherry) ; Mauritius. 
Lambrus laciniatus, De Haan. Japan (5 to 20 fathoms). 
Lambrus validus, De Haan. Japan. 
Lambrus lamelliger, White ( = Lambrus lamellifrons, Adams and White, and 
Lambrus rumphii , Bleeker). Indo-Malayan Seas ; Philippines. 
Lambrus tuberculosus, Stimpson. Hong Kong (to 15 fathoms). 
Lambrus intermedius, Miers. Corean Seas; North and West Australia; Shark 
Bay (?). 
Lambrus longispinus, Miers '{—Lambrus spinifer , Haswell). North and North- 
east Australia (to 14 fathoms) ; Shanghai. 
Lambrus holdsworthii, Miers. Ceylon. 
Lambrus Isevicarpus , Miers. Oriental Seas. 
Lambrus mossambicctnus (Bianconi). Mozambique. 
1 The type of this subgenus is Lambrus longimanus (Linne), not, as stated by a lapsus calami in Journ. Linn. Soc. 
Lond., (vol. xiv. p. 672, 1879), Lambrus crenulatus, Saussure. 
