98 WR. G. A. boulengeh on the afeican and [Feb. 7, 



more connected as our knowledge progresses, a state of things that 

 is best expressed by a synopsis of the 7 species which are now 

 distinguished : — 



A. Both pairs of limbs very distinct. 



Hind limb pentadactyle ; 28 scales round the body 1. esnea Wgm. 



„ didactyle; 26 „ „ 2. didacti/la B\gr. 



„ „ 24 ,, „ 3. annectens 'Blgr. 



„ monodactyle ; 26 „ ,, 4. anguinaJj. 



„ „ 24 „ „ 5. tenuior Gthr. 



B. Fore limb very minute or absent ; hind limb monodactyle. 



Fore limb distinct ; 26 scales round the body 6. miopropus 'Blgr. 



„ absent; 22 „ „ 7. 7!iacrolepis Cope. 



EXPLANATION OF PLATE X. 

 Laeeria jacksoni, p. 96. Upper and lower views and side view of head. 



6. A Revision of the African and Syrian Fishes of the 

 Family Cichlidos. — Part II. ' By G. A. Boulenger, 

 F.R.S., F.Z.S. 



[Received January 6, 1899.] 

 (Plates XI. & XII.) 



When I had the honour of reading the first part of this 

 paper before this Society, nearly a year ago, I could not have 

 foreseen the enormous additions to our knowledge of the genera 

 and species of African CicJdicke wliich were so soon to follow 

 through the examination of the collections made in Lake Tanga- 

 nyika by Mr. Moore, and in the Congo by the Officers in the service 

 of the Congo Pree State. The Tanganyika forms have been 

 described in the ' Transactions ' of this Society (vol. xv. pt. 1, 1898), 

 the Congo forms are being published in the ' Anuales du Musee du 

 Congo.' 



In the first part I distinguished 9 genera and diagnosed 33 

 species of the first 6 genera, reserving for the second part the 

 definitions of the species of the genera Tilajna, Docimodus, and 

 Paretroplus. The additions to which I have alluded necessitate 

 an alteration in this plan, and in order to bring my account up to 

 date I have decided to prepare a new synopsis of the genera, 

 amounting now to 19 instead of 9, and to enumerate all the species 

 of the genera preWously dealt with by me, with a mere reference 

 to the fii'st part or to the ' Transactions' paper in which the Tanga- 

 nyika foi'ms have been described and figured. 



' (7/. P. Z. S. 1898, p. 132. 



