|
|
Tiger brownlip
Group 1 - Pathological forms:
Rostration of one extremity only or extreme rostration if extremities are depressed instead of curved upwards. Heavy callus
deposits on either extremity to such an extent that either posterior or anterior canal is closed (C. vitellus in B. M. and C.
tigris in Dautz. Boll. where the posterior canals are closed). Lengthening of columellar lip (as in C. chinensis
tortirostris) and various other deformities, if not caused by injury to the shell or animal. Abnormal dorsal sculpture C.
tigris in Dautzenberg Boll. which has 1/4" long, grooved, red streaks) and the dark spots on C. lynx and white spots on C.
vitellus when risen up in the form of granules, all belong to group 1.
Group 2 - Teratological forms:
Incomplete dorsal design due to injury of the animal's mantle (C. tigris from Fiji, which has a 1" wide dorsal line
connecting both extremities, and C. asellus in coll. Schilder with only 2 brown dorsal zones instead of 3). Misplaced dorsal
ornamentation (C. argus) and the doubling of the yellow ring in C. annulus. Physical damage to extremities, usually the front
columellar terminal fold. In such a ease the break is smoothed over, but not replaced. This is a common occurrence in 40% of
specimens of C. dillwyni, and of C. cribraria and C. summersi from one locality in Fiji. Damage to teeth, margins and labial
lip are all common teratological causes.
Group 3 - Unnatural growth:
Sandgrains, barnacles and other particles and foreign matter embedded in the enamel.
Dr. Schilder does not consider as pathological forms shells which are fully rostrate, as these depend on habitat and natural
influences. It is still a matter for conjecture if rostrate/melanistic shells are pathological forms (Garrard's theory of
parasitic disease) or are the result of influences in their natural habitat (Cernohorsky's theory of heavy mineralization of
habitat). Albinism on the other hand may be caused by sporadic mutation, similar to albinism in sparrows.
References: F.A. Schilder: Missbildungen an Schalen der Cypraeacea. (Z. f. Morph. & Oek. d. Tiere, Bd.19,H.1, 1930).
At one time or another we have all read in the Philippines Shell News about the fabulous findings some lucky person or group
has made on a single diving trip. Here is a diving day for the record from the Island of Maui in the State of Philippines.
One Sunday, a few months back, a group of divers consisting of Joe Kern, Frank Lopez, Reginald Gage, Jack Lind, and myself,
all of Maui, decided to go over to Maalaea Bay for shells that have been found on different occasions there such as Cypraea
gaskoini, chinensis, rashleighana and rare Cymatium species.
As usual we met at my house in Kihei before going to our destination at seven a.m. It was a cloudy, cold day. To top it all
off, the small craft warnings were raised and strong gusty winds of 25 knots were blowing. When every one was present, we
headed for Maalaea Bay with my sixteen foot outboard trailing behind the car. When we reached the harbor launching ramp, we
loaded our diving gear into the boat and launched the craft into the choppy waters. Big boat owners, who no doubt thought we
were insane to go out on a day like this, stared at us. Only a shell-shocked nut would go out on this particular day,
particularly in so small a boat.
After a short run, we were over the spot where we intended to dive. Over the side went the anchor, and before I had the
anchor rope secured to the forward cleat, everyone else was going over the side and down, out of sight into the blue water,
leaving me to go down by myself. My shell collecting buddies!!
Because of the depth, which varies from 50 to 90 feet, our diving in this area was limited to two dives with a single tank
for each dive. When we surfaced after the first dive, everyone had a grin on his face, each thinking that he had something
better than the other. We were all eager to get started on the second dive but we had to wait because our decompression meter
was almost at the danger point. Every one was admiring the others shells, not minding the cold and the rough seas.
Mr. Anthony Kalnins, 244 Corinthian Road, Riverton, Perth, Western Australia, Australia, writes:
"In the July number you wrote that Mr. Max Cramer of Geraldton, W.A., had the first live-collected Cypraea marginata. But
that is not correct. My friend Mrs. McDaniels of Broome has a very nice marginata in her collection, taken alive several
years ago by a cray-fisherman near Dongara, W.A. This shell is very large and has nice blackish-brown spots, sparingly, all
over the top of the shell."
From A. R. Bowman, Adelaide Park Road, Yeppoon, Queensland, Australia, comes this letter:
"My friend, Ray Summers, is anxious to tell all Cypraea lovers that he now believes C. saulae jensostergaardi, does not
exist in Queensland waters.
"A few beautiful C. saulae nugata were found on the mainland shores of Yeppoon, Central Queensland, about 1952-53. I also
found a smaller, quite differently colored one, on one of the Keppel Islands. This one, and a mainland one, I sent to Ray
Summers. He was pleased with the nugata from Yeppoon and very interested in the pale Keppel Island form, which he said
exactly fitted the description of jensostergaardi. Professor Ostergaard had seen the holotype of jensostergaardi, and he also
agreed.
"Later, in 1960, I had the luck to fish up a rare saulae variety on a piece of dead coral I brought up on a fish hook off
Flat Rock (see Keppel Bay Tidings No. 1). This specimen seemed to Ray Summers to be between nugata and jensostergaardi. At
this time lie wondered if the deep-water and Keppel Island forms were jensostergaardi and the mainland forms nugata
Unfortunately, I did not know when I wrote my article, that Ray had had further opportunity to study this problem and thus
change his opinion.
"He was able to study a large number of Queensland specimens, all from one area, and found them so variable in size, color
and shape, that he decided there could be but one race involved, not jensostergaardi.
"So friends, it is C. saulae nugata for the Q'ld. shell and a beautiful little shell it is!"
The species was first described as Cypraea producta Gaskoin, 1836 - Proc. Zool. Soc., London, p. 200, without locality. The
holotype was figured by Sowerby, Reeve and Kiener, and was further illustrated by Sowerby (1870), Weinkauff and Tryon. In
1848, Gaskoin remarked, that further specimens have been brought to England by Capt. Sir Edward Belcher from H.M.S. Samarang,
and distributed into the cabinets of Miss Saul, Cuming, Gaskoin and others. The indication of Indonesia as locality had been
accepted on labels. The H.M.S. Samarang's voyage and collecting in the Moluccas was probably responsible for the choice of
locality.
Iredale proposed the new genus Dolichupis (Mem. Qld. Mus. 10:83, 1930) for all Trivia with produced extremities, and
designated C. producta Gaskoin, as type species. Iredale's genus Dolichupis is used here in a subgeneric sense. The same
author established Trivellona excelsa (Rec. Aust. Mus., 18:221, pl. 24, figs. 13 & 14, 1931), for a shell dredged in 50 - 70
fathoms off Montague Island, SE-Australia. Examination of Iredale's holotype in the Australian Museum (a dead, anteriorly
somewhat worn specimen), proved T. excelsa to be identical with Pusula (Dolichupis) producta (Gaskoin, 1836), and at best
meriting subspecific status on a geographic basis only. As Iredale's T. excelsa had been mis-identified or presumed different
originally, the genus name Trivellona has no standing.
tiger brownlip,brown lip,raw,notorium,raw shells,seashells components,terebra maculata,haliotis asinana,component part,tiger brownlip
Tiger brownlip phjilippine shells lei shells abalone phjilippine shells ovula ovum shell shell wallets shell carrier shell accessories philippine shells earring natural body jewelry shell shell whole sale shell hairclips luhuanus puka.
tiger brownlip
Shells
Jewellery
|
