HE four species of geckoes mentioned by Smith (1935) as occurring in Hong Kong are Hemidactylus frenatus Dumeril and Bibron, Hemidactylus bowringi (Gray), Platyurus platyurus (Schneider) and Gekko chinensis Gray. Since my arrival here in September, 1947, however, observations have shown that it is now necessary to revise this list, in which respect these notes are offered. It is only right to add that I have collected more frequently on Hong Kong Island than in other parts of the Colony, and although a good deal of collecting appears to have been done here by various people in the past, there is need for still more before it will be possible to draw up an accurate list of the species of reptiles now inhabiting the Colony. I will comment first on the four species mentioned by Dr. Malcolm Smith:Hemidactylus frenatus Dumeril and Bibron.-I have been unable to find a single specimen of this gecko and there appears to be only one record of its occurrence, namely, that of the type of Hemidactylus pumilus Hallowell, said to be in Washington and to have come from Hong Kong. On making enquiries from the U. S. National Museum, however, I was informed that the type of Hemidactylus pumilus is not in that institution and that there is no record to prove that it ever has been. In view of this, therefore, there is nothing I know of to justify the inclusion of this species in the herpeto-fauna of Hong Kong. Hemidactylus bowringi (Gray).-This is by far the commonest species on Hong Kong Island and in Kowloon. It is undoubtedly a house gecko, but is also frequently found on trees, the exterior of buildings, and in other outdoor situations. A point of interest with regard to its occurrence on trees is that it is found living on the same trees as the larger species (G. chinensis) referred to below. Platyurus platyurus (Schneider).-Pope (1935) gives the distribution of this species in China as: Lilong in Kwangtung. He adds, however, that it is also known from Hong Kong and remarks that:-It would be gratifying to receive confirmation of the somewhat questionable Hong Kong record. New material from China would likewise be most welcome. For my part, I can only add that so far I have failed to find a single specimen and consider that, if the Hong Kong record is questionable, it is desirable to exclude it from the list until such time as there may be definite evidence to justify its inclusion. Gekko chinensis Gray.-There is no doubt as to the occurrence of this species and in Happy Valley (Hong Kong Island) it is quite common on the larger trees, where it may easily be observed after dark by the aid of a flashlight. I have also seen specimens at Tai Tam Tuk (Hong Kong Island) on the walls of a small derelict building and in several other localities on the Island. It does not seem, normally, to enter inhabited buildings. The following are two additions:-