The following is a list of largest mammals in the even-toed ungulates, that is, the Artiodactyls.

Even-toed ungulates (Artiodactyla) 
 The largest species of even-toed ungulate by weight is the hippopotamus (Hippopotamus amphibius). It is native to the rivers of sub-Saharan Africa. They may have a weight of 4,500 kg (9,900 lb). They can be 5.5 m (18 ft) long and 1.66 m (5.4 ft) tall. Prehistoric hippos like H. gorgops and H. antiquus were larger than the hippos today.

 The largest living bovid, is the gaur (Bos gaurus). Males can weigh up to 1,500 kg (3,300 lb). They can grow up to 4.5 m (15 ft) long and stand 2.2 m (7.2 ft) at the shoulder. 

 The largest antelope is the giant eland (Taurotragus derbianus) is from Africa. They are usually between 220 and 290 cm (7.2 and 9.5 ft) long. They can weigh up to 400 to 1,000 kg (880 to 2,200 lb).

 The bongo (Tragelaphus eurycerus) is the largest species in the genus Tragelaphus. It lives in Africa. They can grow up to 2.15 to 3.15 m (7.1 to 10.3 ft) long. Females weigh around 150–235 kg (331–518 lb). Males weigh about 220–405 kg (485–893 lb).

 The waterbuck (Kobus ellipsiprymnus) is the largest species in the genus kobus. It lives in Africa. Males can grow up to 127 cm (50 in) at the shoulder. Females can grow up to 119 cm (47 in) at the shoulder. Males usually weigh 198–262 kg (437–578 lb). Females get up 161–214 kg (355–472 lb).

 The gemsbok (Oryx gazella) is the largest species in the genus Oryx. It lives in Africa. They can grow up to 190 to 240 cm (75 to 94 in) long. Males can weigh between 180 and 240 kg (400 and 530 lb). Females can weigh 100–210 kg (220–460 lb).
 The giant muntjac (Muntiacus vuquangensis) is the largest species of muntjac. It lives in Asia.

 The blue wildebeest (Connochaetes taurinus) is the largest species of wildebeest. It lives in Africa. The blue wildebeest is usually 170–240 cm (67–94 in) long. Males weigh up to 290 kg (640 lb). For can weigh up to 260 kg (570 lb).

 The largest species in the pig family is the giant forest hog (Hylochoerus meinertzhageni). It is native to the African rainforests. They can weigh up to 275 kg (606 lb). It can grow up to 2.55 m (8.4 ft) in length and 1.1 m (3.6 ft) high at the shoulder. The largest wild suid ever was Kubanochoerus gigas, having measured up to 550 kg (1,210 lb) and stood more than 1.3 m (4.3 ft) tall at the shoulder. 

 The largest living cervid is the moose (Alces alces). It can weigh up to 820 kg (1,810 lb). It is 3.5 m (11 ft) long. It has a shoulder height of 2.4 m (7.9 ft). The largest deer of all time was the broad-fronted moose (Cervalces latifrons). Here is a list of the largest cervids in each genus:

 The Javan rusa (Rusa timorensis) is the largest species in the genus Rusa. It lives in Indonesia, where they grow up to 142 to 185 cm (4.66 to 6.07 ft). Males weigh 152–160 kg. Females weigh about 74 kg.

 The largest living camel is the bactrian camel (Camelus bactrianus). It can weigh up to 1,000 kg (2,200 lb). It grow up to 4 m (13 ft) long, and 2.5 m (8.2 ft) tall at the shoulder. Many giant camels are known from fossils. The largest are Gigantocamelus and Titanotylopus from North America. Both of them may have reached 2,485.6 kg (5,480 lb) and a shoulder height of over 3.4 m (11 ft).

References

Mammals