Frogging at Aylestone Portion 8

My grandmother used to tell us that we will get warts if a frog urinates on our hands. That didn’t deter us from catching frogs, and we didn’t get warts at all.  Something that I remember as a child was hundreds of baby frogs hopping around after good rain.  If only I could experience that once again… Not only for the experience itself but to identify the species.

My childhood experience of frogs is basically restricted to Red Toads and Platanas.

The only time ever that I have seen a Giant bullfrog, was in an irrigation canal on my way home from the bus stop.  The cement canals have fall structures to help the water flow.   A canal fall or drop is an irrigation structure constructed across a canal to lower down its bed level to maintain the designed slope when there is a change of ground level to maintain the designed slope when there is change of ground level.

The bullfrog was caught in the whirlpool at the bottom of the fall structure and couldn’t escape. I can still recall the flashing images of yellow and green when the frog appeared and disappeared under the water. Me and the neighbours son ran home to fetch something to scoop the frog out. We thought it was dead, but it was alive. My mum was not impressed by the damage in the butterfly net she made for us, but understood our good intentions.  The frog buried into the soil and remained in her rose garden for more than a week  before it disappeared.

My mum was the one who lit the flame of curiosity in all her children… When we bought a portion of the farm Aylestone in Barberton, my curiosity exploded with the abundance of life. I love frogs and have accumulated hundreds of photos over the years.

Below is an account of all the frog species I have found so far on Aylestone 8. Only one or two photos are used here that is representative of the species.

Frogs are very variable  Please click on the family name to see more photos, information and links to my videos of their behavior.

FAMILY BUFONIDAE

Schismaderma carens, Red Toad (Rooiskurwepadda)

Sclerophrys gutturalis, Guttural Toad  (Gorrelskurwepadda)

FAMILY HYPEROLIIDAE

Hyperolius marmoratus taeniatus, Painted Reed Frog (Skilderbontrietpadda)

Hyperolius pusillus, Water Lily Frog (Waterleliepadda)

Hyperolius tuberilinguis, Tinker Reed Frog (Groenrietpadda)

Kassina senegalensis, Bubbling Kassina (Borrelvleipadda)

FAMILY MICROHYLIDAE

Phrynomantis affinis, Banded Rubber Frog (Gebande rubberpadda)

FAMILY PHRYNOBATRACHIDAE

Phrynobatrachus natalensis, Snoring Puddle Frog (Snorkmodderpadda)

FAMILY PTYCHADENIDAE

Ptychadena anchietae, Plain Grass Frog (Rooiruggraspadda)

FAMILY PIPIDAE

Xenopus laevis, Common platanna (Gewone platanna)

Xenopus muelleri, Muller’s Platanna (Geelpensplatanna)

FAMILY PYXICEPHALIDAE

Amieta delalandii, Common River Frog (Gewone rivierpadda)

Tomopterna natalensis, Natal Sand Frog (Natalse sandpadda)

FAMILY RHACOPHORIDAE

Chiromantis xerampelina, Southern Foam Nest Frog (Grootgrysskuimnespadda)

I have spent many evenings outside with my torch and cell phone to capture the information above.  Unfortunately, it is not safe anymore to go frogging on my own. Our neighbor farms with crocodiles, and they escape to our dam. There are daytime photos, but those are in the minority. Scientific information comes from the sources mentioned below. The book by Louis du Preez and Vincent Carruthers is a MUST if you are interested in frogs.

For more information:

1. Frogs Of Southern Africa, A Complete Guide, Louis du Preez & Vincent Carruthers. Struik Nature 2017

FAMILY BUFONIDAE – Toads

Schismaderma carens

Sclerophrys gutturalis

Schismaderma carens, Red Toad (Rooiskurwepadda)

I have found pale ones, greenish ones and red ones. For me, they are one of the most difficult to photograph.  They just don’t want to sit still, only hop… hop… hop!

Red toads often come into my  house. I had one that used to hide during daytime in a ‘farm’ shoe that remained outside on the veranda. I could shake it out, wear the shoe in the veldt, and the next morning, the frog would be in the shoe again.

Large eyes with horizontal pupils. Dark glandular ridge stretches from tympanum* to the hindleg. Tympanum as large as the eye

The mating call of Schismaderma carens can become overwhelming if you are sound sensitive.

Sclerophrys gutturalis, Guttural Toad  (Gorrelskurwepadda)

Their hearing or detection of vibrations must be very well developed. They will stop calling when I approach them when I’m about 50-75 meters away.

I have observed the same frogs in the same area, many a night. A few hangs out in the vicinity of a garden light that attracts insects that are easy meals. It was difficult to choose only a few photos. I love guttural toads.

Dark patches on the snout and behind each eye form a cross on the head. They have prominent parotoid glands on the neck behind the eyes.
Red infusions on the thighs is a characteristic of this species
The distinctive cross on the head and red thighs are clearly seen in this photo
I have seen Guttoral toads hanging in the water for a while, like in the picture above, and then climb out and go on searching for food. They regulate moisture levels by absorbing water by osmosis through the semi-permeable skin.

My husband can’t stand the mating call of Sclerophrys gutturalis. We have a pond very close to our bedroom, and he will get up in the middle of night and relocate them to an animal waterhole nearby.

TERMINOLOGY:

Amplexus is a term used to define mating in frogs. It is a reproductive position used by frogs to replicate externally. The male frog will clasp the female from the back, stimulating the release of eggs. After the egg has been released, the male frog fertilizes each egg with the sperm cells.

Tympanum: The tympanic membrane is a thin membrane that separates the frog’s outer and inner ear. It is located behind the eyes. It allows it to hear both in the air and below the water.

Please contact me should you find a species that I have misidentified.

For more information:

1. Frogs Of Southern Africa, A Complete Guide, Louis du Preez & Vincent Carruthers. Struik Nature 2017