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Hippocampus waleananus |
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This new species of Pygmy Seahorse was first seen at the beginning of 2001, in the house reef of the only resort in the small island of Walea, in the Togian archipelago (East Sulawesi). I heard about it soon after that and fortunately, in August 2004, I had my first opportunity to go there to see and photograph this tiny marvel of nature. All these first photos were shot at a depth of 12 meters, on the top of a pinnacle which hosted few small soft corals of genus Nephtea, with colors from white to a pale green. The pinnacle was just few meters from the jetty and shallow, so I could go there every day, even between dives, to have a look and shoot more photos. I believe that four different subjects can be identified from these photos:
At the beginning of 2009 this species has been officially named Hippocampus waleananus. Very little information is available at the moment. The only knowledge comes from direct observation and from few photos. Because of its tiny dimension, some photos I've seen didn't show sharp enough details. I hope, with my photos, to add something to the knowledge of this beautiful pygmy seahorse. Any feedback is always welcome! [Top] Description:
This species is very small. I shot some of these photos at the minimum distance allowed for
focusing, thus having a 1:1 enlargement rate, with my 100 mm. macro lens. Later I measured subjects size on
my slides and the biggest body size found was only 6 mm. The tail is very thin and long, compared to the body.
Its size could be estimated at 8 or 9 mm. Thus, total size should be about 15 mm., similar but probably
smaller than Hippocampus denise, which is considered the smallest pygmy seahorse, with its
«average» size of 16 mm, so far known to date.
It has, on its coronet and back, two short pale spines, without obvious branches. The latter is
bigger, but still no more than 0.5 mm. long. The transparent dorsal fin, just above the tail, is nearly a
square with a 1 mm. side. Habitat:
Opposite to the more known Hippocampus bargibanti and Hippocampus denise and like
Hippocampus pontohi, this species prefers shallow waters: as I said before, all photos were shot
at the depth of 12 meters (39 Ft). All previous findings occurred at similar depths or less.
For a long time one specimen lived on a coral at a depth of only 3.5 meters (12 Ft), just in front of
the resort jetty. The coral, chosen as their habitat, belongs to the genus Nephtea, a small Alcyonarian very common
in those waters. It forms stiff, spiny colonies, usually no more than 30 cm. in height. The polyps are armed
with supporting bundles of spicules. Colonies are not brightly colored, mostly tan, grey, cream or white to pale green. Behavior: I spent a long time, during my stay in Walea, observing this pygmy seahorse. It normally stays
still and well hidden between the spiny polyps of the coral. But it can be very mobile, if disturbed. When this
happens, it lets go its hold and starts swimming, often for nearly one minute, floating around without any visible
movement of its body. The pinnacle hosted, on its top, several small corals and I've often seen this pygmy seahorse
swimming from one to another, sometimes even covering the whole circumference of the pinnacle. This swimming
ability and behavior is very similar to Hippocampus pontohi and very different from 'Gorgonians' species
Hippocampus bargibanti and Hippocampus denise, which in very few occasions, when disturbed, let go of their
hold for just a very quick relocation of few centimeters only. |
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