114 Prof. N. Yakovleff on the Characteristic of 



foveation ; apical half of membrane bronzy brown ; abdomen 

 beneath orange-red. 



Long. 6 mm. 



Bab. Ternate (/. J. Walker, Brit. Mus.). 



Division ? 



Sabellicus, gen. nov. 



Resembling Derceocoris, from which it differs principally by 

 the structure of the antenna?. Head elongately depressed in 

 front of insertion of antenna?, of which the first joint is as 

 long or a little longer than the head, prominently incrassated, 

 and sometimes compressed from immediately beyond base, 

 somewhat longly marginally pilose, with a distinct spur on 

 outer side of apex ; second joint much longer than first, slender 

 at base and regularly and moderately incrassated towards 

 apex ; remaining joints mutilated in type. Eyes large, almost 

 touching anterior margin of pronotum. Pronotum with the 

 basal margin about twice as broad as anterior margin, with a 

 distinct pronotal collar, and with the posterior angles sub- 

 tuberculous ; rostrum reaching the intermediate coxse ; cuneus 

 slightly longer than broad, the fracture profound ; anterior 

 legs robust, the tibia? moderately incrassate ; intermediate 

 and posterior legs mutilated in type. 



Sabellicus apicifer. 



Capsus apicifer, Walk. Cat. Het. vi. p. 124. n. 293 (1873). 



Bab. Celebes: Makian (Brit. Mus.). 

 Type in bad condition. 



Sabellicus sordidus. 



Lopus sordidus, Walk. Cat. Het. vi. p. 57. n. 29 (1873). 

 Leptomerocoris antennatus, Walk. loc. cit, p. 145. n. 109. 



XII. — A Contribution to the Characteristic of Corals of the 

 Group Rugosa. By Prof. N. Yakovleff. 



While engaged in investigating the Upper Palaeozoic coral 

 Lophophyllum probferum*, regarding which there have lately 



* N. Yakovleff, "Fauna of the upper Portion of the Palaeozoic 

 Deposits of the Donetz Basin," Transactions of the Geological Committee, 

 new series, no. 12 (1903). 



