On undescribed Species o/Cicadida}. 485 



A single specimen from the Luculla Iiiver, Angola, 

 obtained by Dr. W. J. Ansorge in 1910. 

 Closely allied to P. darlingi, Blgr. 



Pelmatochromis annectens. 



Depth of body 22 to 2f times in total length, length of 

 head 2f times. Head twice as long as broad ; snout 

 rounded, with convex upper profile, broader than long, as 

 long as eye, which is 3^ times in length of head, equals 

 interorbital width, and exceeds prseorbital depth ; mouth 

 moderate, extending to between nostril and eye ; teeth in 



3 or 4 series, outer rather large, 50 to 6Q in upper jaw ; 3 or 



4 series of scales on the cheek, width of scaly part less than 

 diameter of eye. Gill-rakers short, 9 or 10 on lower part of 

 anterior arch. Dorsal XV 9-10 ; spines gradually increasing 

 in length to the last, which measures nearly ^ length of 

 head ; median soft rays produced, as long as head. Anal III 

 7-8 ; third spine a little shorter than last dorsal. Pectoral 

 | length of head, not reaching vertical of origin of anal. 

 Ventral reaching origin of anal or beyond. Caudal rounded. 

 Caudal peduncle much deeper than long. Scales cycloid, 

 28-29 j|^j ; lateral lines ~£. Dark brown, with four 

 blackish vertical bars on the side ; blackish spots may be 

 present on the back, alternating with the bars ; a black 

 opercular spot ; fins dark grey, posterior part of dorsal and 

 anal, and greater part of caudal with numerous small dark 

 and light spots. 



Total length 85 mm. 



Two specimens from the Lower Niger, presented by Mr. J. 

 Paul Arnold (cf. his article in Wochenschr. Aq.-Terr. 1913, 

 no. 37, p. 661, fig.). 



Connects P. arnoldi } Blgr., with P. ansorgii, Blgr. 



LX. — Undescn'bed Species of Cicadidse. 

 By W. L. Distant. 



The principal material for the present short paper is a small 

 collection of Cicadidas made by Mr. Horace Brown at Cue, 

 N.W. Australia, and forwarded to me by my friend 

 Mr. Walter W. Froggatt of the Entomological Branch of 

 the Department of Agriculture, Sydney, N.S.VV. Tue types 

 of these new species are all in the British Museum. 



Pycna idgeriana, sp. n. 

 Head, pronotum, and mesonotum ochraceous, lateral and 



