I think it is a dromedary. http://en.wikipedia.org/wiki/Dromedary

A dromedary camel.

Dromedary. The kind with two humps is a Bactrian camel.

1 hump Dromedary, 2 humps Bactrian, (3 humps Humphrey) joke :o)

Dromedary is the name for one-hump camels. This type of camel is common to Africa and the Middle East. It was exported all over the world and is now relatively common in Australia and North America, where is has been used sporadically over the years as a pack animal. Dromedary camels are much more common than two hump camels and much less common than camel cigarettes. Bactrian Camels are much less common than dromedary (one-hump). Bactrian camels are native to the Gobi Desert in Mongolia. Aside from the obvious difference of the number of humps, Bactrian Camels differ in a few other key ways. For example, the Bactrian camel grows a thick coat of hair each winter. That coat of hair falls off every spring. This is to deal with the extreme variation of temperature in the Gobi desert where summer highs often top 100 degrees Fahrenheit, and winter months can see significant amounts of snow. In general, Bactrian camels are much more mild-mannered than their hot-tempered dromedary kin. (The Dromedary camel has a uniform length of hair year round.) Estimates for the number of Bactrian Camels in North America range from about 400-800 head. It is possible to cross breed the two types of camels. Some people would expect that by breeding a one-hump camel with a two-hump camel that the result might be a three hump camel. The actual math equation is closer to this: one-hump camel + two-hump camel=a camel with one really large hump. Due to lower numbers, and the higher regard in the eyes of breeders, Bactrian camels command much higher prices than Dromedary camels.