If it is a Strepsirrhine, it is not a monkey. If it is a monkey, it is not a Strepsirrhine.

A strepsirrhine is a primate belonging to the order (group) Strepsirrhini, one of the two primate orders. Examples of strepsirrhines include lemurs, aye-ayes, and lorises. Monkeys and apes are NOT strepsirrhines.

Lemurs, tarsiers, and lorises belong to a group of primates called prosimians.

The sub-order Strepsirrhini (curly-nosed primates) are non-tarsier prosimians, and the sub-order Haplorrhini (dry-nosed primates) includes tarsiers and simians.

The Primates order has traditionally been divided into two main groupings: prosimians and simians. Prosimians have characteristics most like those of the earliest primates, and included the lemurs of Madagascar, lorisiforms and tarsiers. Simians included the monkeys and apes. More recently, taxonomists have created the suborder Strepsirrhini, or curly-nosed primates.

We are humans (Homo sapiens), a member of the taxonomic order primates. In the order primates there are two main sub-orders: strepsirrhini (lemurs, lorises and bush-babies) and haplorhini (tarsiers, monkeys, apes and humans). We are all members of the same order based on certain synapomorphies (i.e., shared, derived traits) that distinguish us from other mammals, which is referred to as the 'primate pattern'. Some of these traits include: forward-facing eyes with stereoscopic vision, grasping hands and feet with opposable halluces and nails instead of claws, larger encephalization than other mammals, a long period of infant dependency and a tendency to give birth to singletons instead of litters, and so forth. As humans, we belonging to the suborder haplorhini. We certainly aren't monkeys as the last poster noted, nor did we 'evolve' from monkeys. Rather, share a last common ancestor with these other priamtes in our distant evolutionary past. The living apes (i.e., Hylobates, Pongo, Gorilla and Pan) shared a LCA with the lineage leading to our own genus at ~ 14, 7, 4 and 2 Mya, respectively.