Photograph by Kelvin K. P. Lim

Land snails Sarika resplendens feeding on frog carcass

Location, date and time: Pulau Tekong, reclaimed land at the south; 7 July 2012; 2125 hrs.

Observation: Eight examples of Sarika resplendens, the largest about 1.5 cm in shell width, were observed nibbling on the carcass of a small frog, probably Field Frog (Fejervarya limnocharis).

Remarks: The cause of the frog’s death is not known, but it is not likely to have been killed by the snails, which appeared to be scavenging.

Although Sarika resplendens is known to be herbivorous and detritivorous, it has apparently not been recorded to consume animal flesh (Tan et al., 2012).

Reference:

  • Tan S. K., Chan S. Y. & G. R. Clements, 2012. A Guide to Snails and other Non-marine Molluscs of Singapore. Singapore Science Centre. 176 pp.

Source: Singapore Biodiversity Records 2015: 15

Photograph by Chim Chee Kong

Blackspot Shark (Carcharhinus sealei) at Eastern Johor Straits

Location, date and time: Eastern Johor Straits, off northern shore of Pulau Tekong; 6 July 2012; 0809 hrs.

Observation: Two dead examples of about 60 centimetres total length were found entangled in a gill net. One of them is shown in the attached picture.

Remarks: This small shark, recognized by its black-tipped second dorsal fin, is quite harmless to humans. It is distributed in the Indo-west Pacific, inhabits coastal waters up to 40 metres deep, and grows to a maximum size of 95 centimetres total length (Compagno et al., 2005: 305).

Reference:

  • Compagno, L., M. Dando & S. Fowler, 2005. A Field Guide to the Sharks of the World. Harper Collins Publishers Ltd., London. 368 pp.

Source: Singapore Biodiversity Records 2014: 47