20 bulletin: museum of comparative zoology. 



Branchiodoma longipes = var. rotundatum Haase, Abhandl. Mus. Dresden, 

 ' 1887, 5, p. 84.2 



Rkysida longipes Silvestri, Ann. Mus. civ. Geneva, 1894, 34, p. 630.' Attems, 

 Abhandl. Senchenb. gesellsch., 1897, 23, p. 478.* Brolemann, Records 

 Austr. mus., 1912, 9, p. 44.^ Attems, Bijdr. dierk., 1915, 20, p. 4.6 



Localities. — Queensland: Condamine River. ^ Victoria: Mel- 

 bourne.^ Banda Island.^ New Guinea.^ Ternate. Halmaheira.* 

 Ceram : Waigeu.^ 



43. Rhysida immarginata (Porat). 



Branchiostoma immarginatum Porat, Bih. Svensk. akad. Handl., 1876, 4, no. 7, 



p. 24. 

 Branchiostoma immarginatum var. celebense Haase, Abhandl. Mus. Dresden, 



1887, 5, p. 86.1 



Localities. — Celebes.^ Fijis: Nansori, Labasa (W. M. Mann). 



44. Ethmostigmus australianus, sp. nov. 



Type.— M. C. Z. 1,927. New South Wales: Southerland, Sep- 

 tember, 1914 (W. M. Wheeler). 



Cephalic plate only obscurely finely punctate. Antennae composed 

 of twenty articles of which, unlike other species of the genus, only the 

 three first articles are wholly smooth and shining, though the fourth 

 is hairy only distally and on the one side. Dorsal plates completely 

 bisulcate from the sixth caudad, margined beginning with the seventh 

 or sixth. Each prosternal plate with four teeth of which the end 

 ones are reduced. Ventral plates bisulcate, the sulci deep over middle 

 and fading out at ends. Last ventral plate narrowed caudad from a 

 little behind the anterior end, the caudal margin obtusely angularly 

 excised. Coxopleural processes exceeding the last ventral plate by 

 more than their length, with two spines at tip, moderately close to 

 each other, three spines laterally and four to six dorsally. Femur of 

 anal legs ventrally with three spines in ectal row, three toward meso- 

 ventral edge, and on mesal surface with 2 -f-2 spines in addition to the 

 one at the distal angle. Twentieth legs each with a tarsal spine. 



Length, 33 mm. 



45. Etiimostigmus waiainus, sp. nov. 



Type.— M. C. Z. 1,968. Paratypes.— M. C. Z. 108, 2,113. 

 Solomons: Wai-ai, Auki, Fulakora (W. M. Mann). 



Color dark brownish green; head and first plate abruptly darker 



