| Yangtze River Dolphin | The freshwater marine mammal, which could grow to 2½ metres long and weigh up to a quarter of a tonne, is the first large vertebrate forced to extinction by human activity in 50 years. |
| Western Black Rhinoceros | The black rhino has a length of 3-3.8 m (10-12.5 ft), a height of 1.4-1.7 m (4.5-5.5 ft), and a weight of 800-1350 kg (1750-3000 lbs). It has two horn. The larger anterior (front) horn measures 0.5-1.3 m (1 ft 8 in-4ft 4in), while the smaller posterior (rear) horn measures 2-55 cm (1-22 in). This rhino has a relatively pointed snout with a pointed prehensile lip. (IRF. 2001) |
| Po'o-uli Melamprosops phaeosoma | The Po'o-uli Melamprosops phaeosoma belongs to one of the world's most threatened bird families – the Hawaiian honeycreepers (Drepanididae). The species was only discovered in 1973, in Maui's Ko`olau Forest Reserve. Even then its population was estimated at fewer than 200 individuals. |
| Miss Waldron's Red Colobus Monkey | Miss Waldron's red colobus is a small, black monkey with reddish fur on its forehead and thighs. Researchers think that these primates once lived in large, noisy packs in the canopy rainforests of eastern Ivory Coast and western Ghana. Current evidence suggests that, if the monkey is still alive, it's range may be limited to the remote southeastern corner of Ivory Coast. |
| Pyrenean Ibex | The Pyrenean Ibex had a very short fur, composed exclusively by true hair in summer and in winter made of both, longer hair and short thick wool. In all seasons the hair was longer above neck, forming a short, stiff mane. In the carpals there is a bare patch. (Cabrera, 1914) Its thick coat suitable for frigid mountain weather. |
| Atitlan Grebe | The Atitlán Grebe reached a length of about 46–50 cm. The call and appearance were similar to the Pied-billed Grebe. The plumage was mainly dark brown with white-flecked flanks. The underparts were dark grey flecked with white. The head was almost black and the neck was flecked with dark brown in the spring and white in the winter. The legs were slaty grey. The bill had a bold black vertical band in the middle. The color of the bill varied from white in the spring to brown in other seasons. |
| Golden Toad | The Golden Toad (Bufo periglenes) was a small, shiny, bright-orange toad that was once abundant in a small region of high-altitude cloud-covered tropical forest, about 30 square kilometers in area, above the city of Monteverde, Costa Rica. |
| Arcuate Pearly Mussel | The Arc-form Pearly Mussel or Sugarspoon lived in the United States of America. It was found in the states Alabama, Kentucky, and Tennessee. This freshwater species occurred in the Cumberland and Tennessee River systems. The Arc-form Pearly Mussel was found in medium to large rivers in shoal and riffle areas. (Bogan, 2000) |
| Kauai Oo | This bird was among the smallest of the Hawaiian honeyeaters, if not the smallest species, at just over 20 cm in length. It was black or very dark shiny brown with sparse yellow leg feathers and faint white banding on the breast and underwings. Like other honeyeaters it had a sharp, slightly decurved bill for sampling nectar. |
| Eungella Gastric-brooding Frog | The colour of this frog’s dorsal surface was pale brown with obscure darker patches on the body and limbs. The ventral surface was white or brown, with bright yellow-orange on the lower abdomen and undersides of the limbs. The skin is granular above, with large projections on the upper eyelid. The ventral surface is smooth. This frog had a blunt, rounded snout, and with its nostrils directed upwards. These frog’s fingers lack webbing, while their toes are extensively webbed to suit its aquatic lifestyle. The fingers and toes have slightly expanded tips. |
| Conondale Gastric-brooding Frog | The body was grey on the back with variable darker and lighter patches, whilst the underparts were white with large creamy markings. There was a dark streak running from the eye to the forelimbs. The small, flattened head featured large, protruding eyes and the toes were fully webbed. |
| Javan Tiger | The Javan tiger was quite similar in appearance to the still existing Sumatran tiger, but had numerous darker and closer-set black stripes. Striping on the flanks and back was often double-looped. This dense pattern of stripes was characteristic for this subspecies. This subspecies was also notable for their cheek whiskers that were the longest of any of the subspecies. (Van den Hoek Ostende. 1999) |
| Cyprus Spiny Mouse | Similar in appearance to mice of the genus Mus, spiny mice are small mammals with bare, scaled tails. However, their coats are endowed with unusually stiff guard hairs that function similarly to the spines of a hedgehog; this trait is the source of the common name, spiny mouse. |
| Southern Day Frog | The colour of this small frog’s dorsal surface was grey or brown with darker mottling. A dark, irregular, slightly raised H-shaped mark is present over the shoulders, and an irregular pale patch may be present over the pelvic region. This frog has a pale bar between the eyes, bordered behind by a dark brown patch. Short dark stripes run down from the eye to the base of the forearm, sometimes with a pale band bordering the lower edge. Their limbs have irregular dark cross bands. This frog’s ventral surface is cream, yellowish-white or blue-grey, with or without grey spots. Their throat is more heavily spotted or mottled with grey, sometimes with grey with yellow spots. |
| Dutch Alcon Blue | There is not much known about this subspecies, but it has always been very rare. It was endemic to the Netherlands, where two populations were known. One in Meijendel (dunes north of The Hague), and in the Meije (in the neighbourhood of the Nieuwkoopse Plassen). |
| Colombian Grebe | The Colombian Grebe (Podiceps andinus), was a grebe (aquatic bird) found in the Bogotá wetlands in the Eastern Andes of Colombia. The species was still abundant on Lake Tota (3000m) in 1945. The species has occasionally been considered a subspecies of Black-necked Grebe (P. nigricollis). |
| Round Island Burrowing Boa | This snake once lived on Round Island, a tiny place off the coast of Mauritius: it was found nowhere else in the world. |
| Guam Flying Fox | The Guam flying fox (Pteropus tokudae) was a tiny Megabet from Guam in the Marianas Island in Micronesia.It often roosted with the larger and much more common Marianas flying fox. |
| Bali Tiger | Bali tigers had short fur that was deep orange colored and darker, fewer strips than other tiger sub-species. Occasionally, between the stripes, there were small black spots. Bali tigers also had unusual bar-shaped patterns on the head. |
| Bush Wren | The Bush Wren (Xenicus longipes), or Mātuhituhi in Maori, was a very small and almost flightless bird endemic to New Zealand. It grew to about 9 cm long and 16 g in weight. It fed mostly on invertebrates which it captured by running along the branches of trees. It nested on or near the ground. |