The Mongolo-Negroid race is the most extent of all races. The Mongolic and Negroic branches of the Mongolo-Negroid race was previously considered two separate races rather than the minor subracial split supported by a more scientific formological categorization, (Encyclopedia Britannica, par. 8). It encompasses most of the world from Africa, to the Americas, to Asia. It includes two major subraces: the Mongolic and the Negroic. These two subraces have many physical similarities with each other, but as a whole are considered formological divisions[1]. The extent of the Mongolo-Negroids has lessened due to the Caucasoid/Caucasian expansion that occurred in the Age of Discovery when Caucasoids suppressed many Mongolo-Negroids in the New World and Africa. Today, racial populations have witnessed a remarkable resurgence with Mongolo-Negroids populating an estimated 80% of the world.[2]
These two major divisions of the Mongolo-Negroid race are not clearly distinguishable on a case by case basis. For example, some Arabish Negroic skulls may appear West Indiash at times and vice versa. This may be the result of a recent admixture across the Negroic and Mongolic subraces, since the anthropological divide in this region emerged out of generations of isolation. Furthermore, there is a sharp clinal distinction along these two subraces, rejecting the likelyhood that mere clinal variation alone could produce a Mongolic skull with a Negroic appearence. This division between the Mongolic and Negroic populations of the Mongolo-Negroid race is still leaps and bounds away from the immeanse gap between the Mongolo-Negroid race and the Caucasian (Caucasoid proper) race, rationally limiting the former Mongolic and Negroic division to a "subracial" notion while requiring the latter to have a "racial" distinction.
The Mongolo-Negroid race has a major division called the Mongolic branch. Historically, this branch was called "Mongoloid" and considered its own race, but today it is understood by most anthropologists to be a division of the larger Mongolo-Negroid race. Originally, the term "Mongoloid" was loosely developed on a comparative basis with a Mongol archetype, but science has advanced. As a result, the indigenous stock of eastern India provides a much better formological standard.[3] This branch is scientifically designated after the Mongolo-Negroids left the region around ancient Persia. Although there is no clear dividing line between the Negroic and Mongolic branches, the border between Afganistan and West Pakistan is the de facto dividing line.[4] The descendents of this ancient human migration are commonly considered Mongololic. 
These peoples include all of the original peoples of India, Ceylon, Nepal, East Pakistan, New Holland, Indochina, the Orient, the Eastern USSR, the Melanesian, Polynesian, and Micronesian islands and North and South America, (Faulkner, par. 1). The Mongolic branch has four microracial groupings. These include the West Indiash, East Indiash, Orientish, (Hammer, 1995), and Amerindish. The West Indiash was the first of the Mongolic groupings to form after the Mongolo-Negroids traveled into the Indus Valley. Due to the subjectivity of subracial distinctions, the peoples of India and Ceylon are sometimes described as "archaic" Mongolics. These peoples were formally known as "Australoids", (Dixon, 1923), but they are now considered racially Mongolic Mongolo-Negroids. 
Due to the dynamics of immigration, India is about 80% Mongolic and 18% Negroic Mongolo-Negroid while only 2% Danish Caucasoid. Of course, the minute Caucasoid and Negroic elements are thoroughly mixed into the mostly Mongolic composition of India's populace. Out of the West Indiash, the East Indiash arrived later in Southeast Asia. Since Southeast Asia was historically known as "Indochina", this grouping is labeled "East Indiash". This group retained many tropical elements of its prior West Indiash form. Similarly, the West Indiash in India traveled to Australia, but retained its form, negating the need to designate a new microracial term. The East Indiash retained their form as they traveled to the Pacific Islands but changed their form in China, creating the Orientish microrace. The Amerindish actually arose from Central Asia and migrated through Alaska down into North America.
The other major division of the Mongolo-Negroid race is the Negroic branch. Although some estimates restrict the extent of the this division[5], formological classification officialy stops before the Afghan-Iran region. Still the exact dividing line is disputed by even the most definitive investigations of the anthropological community, (Russo, pp. 143). The Negroic branch shows a strong division in between its component in Africa and its component in the Arabian peninsula i.e. Western Asia. Some suggest that the East Africish microrace may be a mixture between the West Africish and Arabish components, (Leakey, Chapter 6), but clinal analysis suggests this intermediary group resulted from a gradual shift in form across the Negroic branch. Due to historical conquest, the Negroic branch of the Mongolo-Negroid race is today mixed with Proto-Europid Caucasoids in Spain, Portugal, Southern Italy, and Turkey. Spain is the most mixed with the Arabish microrace due to foreign occupation in its territorial history. The other eastern outskirts of the Arabish branch may have mixed with the West Indiash of the Mongolic branch, but again this is most likely a natural division that occured by the separation of the Mongolic and Negroic branches of the Mongolo-Negroid race eons ago.
Arabish are commonly misidentified as Caucasoid/Caucasian but they are actually Mongolo-Negroid. Earlier anthropologists who relied on stereotypes of Arabs of their day considered them related to Europeans.[6] They relied on the ancient shared cultural ties between Europe and West Asia. Islam and Christianity have historical ties with each other. Of course, we realize today that this vague cultural tie which created "positive" stereotypes among American elitists of the pre-Industrial Age has no relation to the natural forms which are used to classify race. In actuality, Arabish are a subrace of the Mongolo-Negroid race, specifically they are a more "Negroic" in racial character, (Keita, 1990). This is due to archaeological arrival into the Arabian peninsula, retaining the Negroic character of their African progenators since the Neolithic period, (Gonzalez, 2003). This Mongolo-Negroid migratory group stayed in the Arabian pensinsula for a milennia as offshoots traveled to Asia and the Americas.
Foot Notes
[1] After many years of fieldwork and systematic itemization of the purported differences in the "Mongoloid" and "Negroid" race, I have reached the conclusion that they are merely divisions of a larger Mongolo-Negroid race. Alternatively, this may not be recognized by other physical anthropologists.
[2] Offiical national censal reports (if any) do not count true formological races which can only be determined by the human remains, thus any percent I provide will only be a ruff estimate.
[3] Although I have never set foot in this exact part of the world, extrapolation of Dravidian and Khmer skulls should give an exemplarary Mongolic skull. The model shown is a cast of a skull which exhibits the "exemplarary" traits, but it came from a South American source.
[4] Of course, physical traits do not relate directly to national borders, so any line that attempts to divide continuous variation would only be a convention.
[5] In my opinion, traditional designations which distance West Africans from North Africans and West Asians were cognitive measures erected to ensure Caucasoid America's capitalist devaluation of the descendants of Negro slaves would remain unchallenged. The formological data suggests much less of a divide than was traditionally reported.
[6] The misclassification of Arabish rested on the salient similarity between some Spaniards and Arabs, namely doliocephaly. Historians are the ones who first proffered that this classification was in error. Although I know this fact, other physical anthropologists disagree. They acknowledge the recent admixture which was somewhat overlooked initially, but retain that Arabish are a branch of Caucasoids, theorizing a recent origin.
Works Cited
"Race." Encyclopedia Britannica. 2007.
"Race." Funk and Wagnalls New Encyclopedia. Rand McNally:USA, 1983
Faulkner, Ronnie D. Campbell University. 2006. April 5, 2007. http://www.campbell.edu/faculty/faulkner/NCHist3327-9.pdf
Hammer, Michael. Arctic Social Sciences. "DNA and the Peopling of Siberia." 1995. http://www.mnh.si.edu/arctic/html/peopling_siberia.html
Leakey, L. S. B. Stone Age Races in Kenya, Chapter 6
Dixon RB 1923.
The Racial History of Man. New York:Chas Scribner’s Sons.mmRusso, Patrizio. La Gente dell'Etiopia- Tipi e le Loro Origin. Verona, 1935. pp. 140-143
Keita, S.O.Y. Studies of Ancient Crania From Northern Africa. "American Journal of Physical Anthropology". 1990 Sep;83(1):35-48.
Gonzalez et al. Mitochondrial DNA affinities at the Atlantic fringe of Europe. "American Journal of Physical Anthropology." 2003 Apr;120(4):391-404.
