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



I have suggested that Pontonia pinna, Ortmann, is a synonym of the 

 earlier described Anclristus inermis (Miers). 



The examination of: the single specimen of: Leander tenuicornis, Say 

 ( = L. natatoi; M.-Ed.) emphasises the necessity of a revision of the genus, 

 with special reference to the number of joints in the mandibular palp and 

 its value as a generic character. 



The most recent complete list of Red Sea Crustacea is contained in 

 Nobili's work " Fauna carcinologique de la Mer Rouge/' where 142 species 

 of Macrurous Decapoda and 16 species of Stomatopoda are enumerated. 

 Of the Stomatopoda, Gonodactylus graphurus is considered by Kemp as a 

 doubtful record, leaving 15 species of this group as members of the Red Sea 

 Fauna, to which the present collection makes no additions beyond recording 

 Gonodactylus pulchellus, Miers, definitely from within the Rea Sea proper, 

 this species appearing in Nobili's list on specimens from Aden. 



Nobili's list of Macrurous Decapoda omitted the following species recorded 

 by earlier writers : — 



(1) Syncdpheus savignyi, the name given by Guerin to the Athanas 



nitescens of Audouin and Savigny's great work. 



(2) Pterocaris typica and Lysmata trisetacea, both described by Heller 



from Red Sea specimens. 



(3) Penceopsis velutinus, Dana, recorded by Paulson in 1875. 



(4) Parabetwus culliereti, recorded by Ooutiere (1897 a). 



(5) Alplieus djeddensis, Cout., and A. macrodactylus, Ortm., recorded by 



Coutiere (1897 e), and A. malleodigitus (Sp. Bate) by the same 

 author (1899). 



Since Nobili's paper appeared the following additions to the Red Sea 

 fauna have been made : — 



(1) Coutiere in 1909 added Synalplievs hcroni, Cout., and in 1910, Saron 

 neglectus, De Man ; (2) De Man in 1909 b added Alpheus djiboute?isis, 

 Cout.; and (3) Balss (1914a & b) recorded the following eight 

 additional species : — Haliporus steindaclineri, Balss, Parapenceus 

 fissurus (Sp. Bate), Parapandalus pristis (Risso) and P. adensameri, 

 Balss, Dorodotes levicarina, Sp. Bate, JEgeon pennatus, Sp. Bate, 

 Stenopus spinosits (Risso), and Paratypton siebenrocki, Balss. Admit- 

 ting the validity of all the old records and with the addition of the 

 11 species herein recorded for the first time from the Red Sea, and 

 the four new species described below, the total number of Macrurous 

 Decapoda now known from the Red Sea amounts to 176, an increase 

 of 34 on Nobili's total. 



The Red Sea in the past has received a considerable amount of attention 

 at the hands of carcinolosists, with the result that no fewer than 60 out of 



